21 Aricent Java Interview Questions

Aricent Java Interview Questions. Coding compiler compiled a list of 21 real-time java interview questions for experienced. These advanced java questions will help you to prepare for Aricent job interview.

Aricent Java Interview Questions

Go through these below Aricent java interview questions.

  1. When Abstract Methods Are Used?
  2. What Are Wrapper Classes?
  3. What Do You Mean By Platform Independence?
  4. What Is A Pointer And Does Java Support Pointers?
  5. What Is The Difference Between Creating String As New() And Literal?
  • What Is The Use Of The Finally Block? Is Finally Block In Java Guaranteed To Be Called? When Finally Block Is Not Called?
  • What’s The Difference Between The Methods Sleep() And Wait()?
  • What Is The Difference Between An Interface And An Abstract Class ?
  • Difference Between Final, Finally And Finalize ?

Aricent Real-Time Interview Questions

What Is Struts?

How Is The Mvc Design Pattern Used In Struts Framework?

Who Makes The Struts?

Why It Called Struts?

Do We Need To Pay The Struts If Being Used In Commercial Purpose?

What Are The Core Classes Of Struts?

What Is The Design Role Played By Struts?

What Interface Is Extended By Awt Event Listeners?

What Restrictions Are Placed On Method Overriding?

How Can A Dead Thread Be Restarted?

What Happens If An Exception Is Not Caught?

Must Read Java Interview Questions Books

RELATED INTERVIEW QUESTIONS

  1. Accenture Java Interview Questions
  2. Advanced Java Interview Questions
  3. Core Java Interview Questions
  4. .NET Interview Questions
  5. Ansible Interview Questions
  6. ServiceNow Interview Questions
  7. RPA Interview Questions
  8. Blue Prism Interview Questions
  9. SSIS Interview Questions And Answers
  10. Oracle Performance Tuning Interview Questions
  11. SCCM Interview Questions
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53 Accenture Java Interview Questions

Accenture Java Interview Questions. Coding compiler compiled a list of 53 real-time java interview questions for experienced. These java questions will help you to prepare for Accenture job interview.

Accenture Java Interview Questions

Go through these below Accenture java interview questions.

  • Describe A Problem You Faced And How You Deal With It ?
  • How To Read And Write Image From A File ?
  • How Concurrenthashmap Works?
  • Can A Static Block Throw Exception?
  • What Is Difference Between Iterator Access And Index Access?
  • What Is Java Reflection Api?
  • What Is The Difference Between Serializable And Externalizable Interfaces?
  1. What Is An Abstract Method?
  2. What Value Does Read() Return When It Has Reached The End Of A File?
  3. Can A Byte Object Be Cast To A Double Value?
  4. What Is The Difference Between A Static And A Non-static Inner Class?
  5. What Is An Object’s Lock And Which Object’s Have Locks?
  6. What Is The % Operator?
  7. When Can An Object Reference Be Cast To An Interface Reference?
  8. Which Class Is Extended By All Other Classes?
  9. Which Non-unicode Letter Characters May Be Used As The First Character Of An Identifier?

Accenture Java Interview Questions for Experienced

What Restrictions Are Placed On Method Overloading?
What Is Transient Variable?
What Is Collection Api?
What Is Casting?
What Is The Return Type Of A Program’s Main() Method?
If A Variable Is Declared As Private, Where May The Variable Be Accessed?
What Do You Understand By Private, Protected And Public?
What Is Downcasting ?

What Modifiers May Be Used With An Inner Class That Is A Member Of An Outer Class?
How Many Bits Are Used To Represent Unicode, Ascii, Utf-16, And Utf-8 Characters?
What Restrictions Are Placed On The Location Of A Package Statement Within A Source Code File?
What Is Assembly Condition Codes?
What Is Data Movement?
What Are Kinds Of Processors?
What Are Assembly Attributes?
What Are The Types Of Assemblies?
Explain An Intermediate Language?
What Is Assembly Language?

Accenture Real-Time Interview Questions

What Are The Advantages Of Assembly Language?
What Are The Basic Features Of Pc Hardware?
What Is Binary Number System?
What Is Hexadecimal Number System?
What Is Local Environment Setup?
How To Installing Nasm?
What Are The Assembly Program Sections?
What Is The Data Section?
What Is The Bss Section?
What Is The Text Section?

What Are The Assembly Language Statements?
What Is The Syntax Of Assembly Language Statements?
What Are Memory Segments?
What Are The Processor Registers?
What Linux System Calls?
What Are The Basic Modes Of Addressing ?
What Is The Equ Directive?

Which Location Do You Want To Work In And Why?

Must Read Java Interview Questions Books

RELATED INTERVIEW QUESTIONS

  1. Advanced Java Interview Questions
  2. Core Java Interview Questions
  3. .NET Interview Questions
  4. Ansible Interview Questions
  5. ServiceNow Interview Questions
  6. RPA Interview Questions
  7. Blue Prism Interview Questions
  8. SSIS Interview Questions And Answers
  9. Oracle Performance Tuning Interview Questions
  10. SCCM Interview Questions
  11. ServiceNow Interview Questions
  12. SQL Interview Questions
  13. Docker Interview Questions

C Program To Reverse An Array

C Program To Reverse An Array. If you are looking for C Program for Reverse Array, here in this tutorial we will help you to learn how to write a C program to reverse an array elements.

C Program To Reverse An Array

Learn how to write a C program to reverse an array. Writing a C reverse array program can be done using various techniques but here in this program, we show how to write a program to reverse an array logic in a proper way.

Reversing An Array Elements Example

These are some examples of reversing array elements.

Input : arr[] = {11, 12, 13}
Output : arr[] = {13, 12, 11}

Input : arr[] = {41, 51, 11, 21}
Output : arr[] = {21, 11, 51, 41}

C Program To Reverse An Array Source Code

Find the below source code to reverse an array and how to write c program to reverse an array using while loop.

/* C Proram to reverse an array using while loop - ReverseArray.C */

#include<stdio.h>

int main() {
//variable declaration
 int arr[30], i, j, num, temp;
//asking user to enter size of an array elements
printf("\nEnter no of elements : ");
 scanf("%d", &num);

//Reading elements in an array
 for (i = 0; i < num; i++) {
 scanf("%d", &arr[i]);
 }

j = i - 1; // j will Point to last element of an array
 i = 0; // i will be pointing to first element of ann array

while (i < j) {
 temp = arr[i];
 arr[i] = arr[j];
 arr[j] = temp;
 i++; // increment i
 j--; // decrement j
 }

//Printing output of an array elements in a reverse order
 printf("\nThe result after reversing of an array : ");
 for (i = 0; i < num; i++) {
 printf("%d \t", arr[i]);
 }

return (0);
}

C Program To Reverse An Array Output

Enter no of elements : 3

41     51     11     21

The result after reversing of an array

21     11     51     41

C PROGRAMMING TUTORIALS

  1. C Program For Pascal Triangle
  2. C Program to Print Prime Numbers from 1 to 100
  3. C Program to Find LCM and GCD of Two Numbers
  4. C Program to Add Spaces in a String
  5. C Program To Add Digits Of A Number
  6. C Program To Find Leap Year
  7. C Program To Append Data Into A File
  8. C Program to Accept Only Integer Values
  9. C Program To Arrange Numbers In Descending Order
  10. C Program to Add Days to Date
  11. C Program to Add Two Fractions
  12. C Program To Reverse A Number
  13. C Program to Find Maximum and Minimum Numbers
  14. C Program to Read a Text File
  15. C Program to Convert Decimal to Hexadecimal
  16. C Program to Convert Decimal to Binary
  17. C Program to Convert Celsius to Fahrenheit
  18. C Program To Find Absolute Value
  19. Ternary Operator Program in C
  20. C Program For Addition Table Using For Loop

C Program To Print Pascal Triangle

C Program To Print Pascal Triangle. If you are looking for C Program for Pascal Triangle, here in this tutorial we will help you to learn how to write a C program to display Pascal triangle.

C Program to Print Pascal Triangle

Learn how to write a C program to print Pascal Triangle. Writing a Pascal Triangle C program can be done using various techniques but here in this program, we show how to write a pascal triangle logic in a proper way.

Pascal Triangle Example

           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1 

C Program to Print Pascal Triangle Source Code

/* C Program to print pascal traiangle - PascalTriangle.C */

#include <stdio.h>
int main()
{
//variable declaration
 int rows, coef = 1, space, i, j;

//asking user to enter number of rows and reading
printf("Enter number of rows: ");
 scanf("%d",&rows);

//logic for printing pascal triangle
for(i=0; i<rows; i++)
 {
 for(space=1; space <= rows-i; space++)
 printf(" ");

for(j=0; j <= i; j++)
 {
 if (j==0 || i==0)
 coef = 1;
 else
 coef = coef*(i-j+1)/j;

printf("%4d", coef);
 }
 printf("\n");
 }

return 0;
}

C Program to Print Pascal Triangle Output

Enter number of rows: 6


           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1 

C PROGRAMMING TUTORIALS

  1. C Program to Print Prime Numbers from 1 to 100
  2. C Program to Find LCM and GCD of Two Numbers
  3. C Program to Add Spaces in a String
  4. C Program To Add Digits Of A Number
  5. C Program To Find Leap Year
  6. C Program To Append Data Into A File
  7. C Program to Accept Only Integer Values
  8. C Program To Arrange Numbers In Descending Order
  9. C Program to Add Days to Date
  10. C Program to Add Two Fractions
  11. C Program To Reverse A Number
  12. C Program to Find Maximum and Minimum Numbers
  13. C Program to Read a Text File
  14. C Program to Convert Decimal to Hexadecimal
  15. C Program to Convert Decimal to Binary
  16. C Program to Convert Celsius to Fahrenheit
  17. C Program To Find Absolute Value
  18. Ternary Operator Program in C
  19. C Program For Addition Table Using For Loop
  20. Denomination Program in C

C Program To Print Prime Numbers From 1 To 100

C program to print prime numbers from 1 to 100. If you are looking for C program to find prime numbers, here in this tutorial we will help you to learn how to write a C program for prime numbers.

C Program to Print Prime Numbers

Learn how to write a C program to print all Prime numbers between 1 to 100. Writing a C program to display prime numbers between two intervals can be done using various techniques but here in this program, we show how to write a C program to print prime numbers from 1 to 100 in a proper way.

C Program to Print Prime Numbers Source Code

/* C Program to print prime numbers from 1 to 100 - PrimeNumbers.C */

#include <stdio.h>
#include <stdlib.h>
 
void main()
{
//variable declaration
 int num1, num2, i, j, flag, temp, count = 0;
 
//asking user to enter lower and upper limit numbers and reading
 printf("Enter the value of num1 and num2 \n");
 scanf("%d %d", &num1, &num2);
//logic to finding and printing prime numbers from 1 to 100
 if (num2 < 2)
 {
   printf("There are no primes upto %d\n", num2);
   exit(0);
 }
 
 printf("Prime numbers are \n");
 temp = num1;
 
 if ( num1 % 2 == 0)
 {
   num1++;
 }
 
 for (i = num1; i <= num2; i = i + 2)
 {
 flag = 0;
 for (j = 2; j <= i / 2; j++)
 {
 if ((i % j) == 0)
 {
 flag = 1;
 break;
 }
 }
 if (flag == 0)
 {
 printf("%d\n", i);
 count++;
 }
 }
 printf("Number of primes between %d & %d = %d\n", temp, num2, count);
}

C Program to Print Prime Numbers Output

Enter the value of num1 and num2

1

100

Prime numbers are

2     3    5     7    11    13    17    19     23      29

31      37      41      43      47      53      59      61

67      71     73      79      83      89      97

Number of primes between 1 & 100 = 25

C PROGRAMMING TUTORIALS

  1. C Program to Find LCM and GCD of Two Numbers
  2. C Program to Add Spaces in a String
  3. C Program To Add Digits Of A Number
  4. C Program To Find Leap Year
  5. C Program To Append Data Into A File
  6. C Program to Accept Only Integer Values
  7. C Program To Arrange Numbers In Descending Order
  8. C Program to Add Days to Date
  9. C Program to Add Two Fractions
  10. C Program To Reverse A Number
  11. C Program to Find Maximum and Minimum Numbers
  12. C Program to Read a Text File
  13. C Program to Convert Decimal to Hexadecimal
  14. C Program to Convert Decimal to Binary
  15. C Program to Convert Celsius to Fahrenheit
  16. C Program To Find Absolute Value
  17. Ternary Operator Program in C
  18. C Program For Addition Table Using For Loop
  19. Denomination Program in C
  20. C Program to Print Multiplication Table 

C Program To Find LCM GCD Of Two Numbers

C Program To Find LCM GCD Of Two Numbers. If you are looking for C program to calculate LCM and GCD of two numbers, here in this tutorial we will help you to learn how to write a program to find LCM in C language.

C Program to Find LCM and GCD

Learn how to write a C program to find LCM. Writing C Program to finding GCD of a number can be done using various techniques but here in this program, we show how to write a C program to find LCM GCD of two numbers in a proper way.

C Program to Find LCM and GCD of Two Numbers Source Code

/* C program to find the LCM and GCD of two numbers - LcmGcd.C */

 #include <stdio.h>

void main()
 {
//variable declaration
 int num1, num2, gcd, lcm, remainder, numerator, denominator;

//asking user to enter two numbers and reading them
printf("Enter two numbers\n");
 scanf("%d %d", &num1, &num2);

//checking for bigger number
 if (num1 > num2)
 {
 numerator = num1;
 denominator = num2;
 }
 else
 {
 numerator = num2;
 denominator = num1;
 }

//calculating remainder
 remainder = numerator % denominator;

//logic to find gcd and lcm of two numbers
 while (remainder != 0)
 {
 numerator = denominator;
 denominator = remainder;
 remainder = numerator % denominator;
 }

//finding lcm and gcd of two numbers
 gcd = denominator;
 lcm = num1 * num2 / gcd;

//printing lcm and gcd of two numbers
 printf("GCD of %d and %d = %d\n", num1, num2, gcd);
 printf("LCM of %d and %d = %d\n", num1, num2, lcm);
 }

C Program to Find LCM and GCD of Two Numbers Output

Enter two numbers

65

30

GCD of 65 and 30 = 5

LCM of 65 and 30 = 390

C PROGRAMMING TUTORIALS

  1. C Program to Add Spaces in a String
  2. C Program To Add Digits Of A Number
  3. C Program To Find Leap Year
  4. C Program To Append Data Into A File
  5. C Program to Accept Only Integer Values
  6. C Program To Arrange Numbers In Descending Order
  7. C Program to Add Days to Date
  8. C Program to Add Two Fractions
  9. C Program To Reverse A Number
  10. C Program to Find Maximum and Minimum Numbers
  11. C Program to Read a Text File
  12. C Program to Convert Decimal to Hexadecimal
  13. C Program to Convert Decimal to Binary
  14. C Program to Convert Celsius to Fahrenheit
  15. C Program To Find Absolute Value
  16. Ternary Operator Program in C
  17. C Program For Addition Table Using For Loop
  18. Denomination Program in C
  19. C Program to Print Multiplication Table 
  20. C Program Array with Example

581 Advanced Java Interview Questions For 5 8 10 Years Experienced

Advanced Java Interview Questions. Coding compilers collected list of 581 adv java interview questions for freshers to experienced developers.

This list of interview questions includes, java interview questions for experienced professionals, java scenario based interview questions, java interview questions for 3 years experience, java interview questions for 5 years experience, java interview questions for 8 years experience and java j2ee interview questions for 10 years experience.

We are sure that after going through these advanced java interview questions, you will be in a position to handle any java job interview. Happy learning.!

Advanced Java Interview Questions

Which Containers Use A Border Layout As Their Default Layout?
Why Do Threads Block On I/o?
How Are Observer And Observable Used?
What Is Synchronization And Why Is It Important?
Can A Lock Be Acquired On A Class?
What’s New With The Stop(), Suspend() And Resume() Methods In Jdk 1.2?
Is Null A Keyword?
What Is The Preferred Size Of A Component?
What Method Is Used To Specify A Container’s Layout?
Which Containers Use A Flowlayout As Their Default Layout?
What State Does A Thread Enter When It Terminates Its Processing?
What Is The Collections Api?
Which Characters May Be Used As The Second Character Of An Identifier, But Not As The First Character Of An Identifier?
What Is The List Interface?
How Does Java Handle Integer Overflows And Underflows?
What Is The Vector Class?
What Modifiers May Be Used With An Inner Class That Is A Member Of An Outer Class?
What Is An Iterator Interface?
What Is The Difference Between The >> And >>> Operators?
Which Method Of The Component Class Is Used To Set The Position And Size Of A Component?
What Is The Difference Between Yielding And Sleeping?
Which Java.util Classes And Interfaces Support Event Handling?
Is Sizeof A Keyword?
What Are Wrapped Classes?
Does Garbage Collection Guarantee That A Program Will Not Run Out Of Memory?
What Restrictions Are Placed On The Location Of A Package Statement Within A Source Code File?
Can An Object’s Finalize() Method Be Invoked While It Is Reachable?
What Is The Immediate Superclass Of The Applet Class?
What Is The Difference Between Preemptive Scheduling And Time Slicing?
Name Three Component Subclasses That Support Painting.
What Value Does Readline() Return When It Has Reached The End Of A File?

Java interview questions for experienced professionals

What Is The Immediate Superclass Of The Dialog Class?
What Is Clipping?
What Is A Native Method?
Can A For Statement Loop Indefinitely?
What Are Order Of Precedence And Associativity, And How Are They Used?
When A Thread Blocks On I/o, What State Does It Enter?
To What Value Is A Variable Of The String Type Automatically Initialized?
What Is The Catch Or Declare Rule For Method Declarations?
What Is The Difference Between A Menuitem And A Checkboxmenuitem?
What Is A Task’s Priority And How Is It Used In Scheduling?
What Class Is The Top Of The Awt Event Hierarchy?
When A Thread Is Created And Started, What Is Its Initial State?
Can An Anonymous Class Be Declared As Implementing An Interface And Extending A Class?
What Is The Immediate Superclass Of Menu?
What Is The Purpose Of Finalization?
Which Class Is The Immediate Superclass Of The Menucomponent Class?
What Invokes A Thread’s Run() Method?
What Is The Difference Between The Boolean & Operator And The && Operator?
Name Three Subclasses Of The Component Class.
What Is The Gregoriancalendar Class?
Which Container Method Is Used To Cause A Container To Be Laid Out And Redisplayed?
What Is The Purpose Of The Runtime Class?
How Many Times May An Object’s Finalize() Method Be Invoked By The Garbage Collector?
What Is The Purpose Of The Finally Clause Of A Try-catch-finally Statement?
What Is The Argument Type Of A Program’s Main() Method?
Which Java Operator Is Right Associative?
Can A Double Value Be Cast To A Byte?
What Must A Class Do To Implement An Interface?
What Method Is Invoked To Cause An Object To Begin Executing As A Separate Thread?
Name Two Subclasses Of The Textcomponent Class.
Which Containers May Have A Menubar?
How Are Commas Used In The Intialization And Iteration Parts Of A For Statement?
What Is The Purpose Of The Wait(), Notify(), And Notifyall() Methods?
What Is An Abstract Method?
How Are Java Source Code Files Named?
What Is The Relationship Between The Canvas Class And The Graphics Class?
What Are The High-level Thread States?
What Value Does Read() Return When It Has Reached The End Of A File?
Can A Byte Object Be Cast To A Double Value?
What Is The Difference Between A Static And A Non-static Inner Class?
What Is The Difference Between The String And Stringbuffer Classes?
If A Variable Is Declared As Private, Where May The Variable Be Accessed?
What Is An Object’s Lock And Which Object’s Have Locks?
What Is The Dictionary Class?
How Are The Elements Of A Borderlayout Organized?
What Is The % Operator?
When Can An Object Reference Be Cast To An Interface Reference?
What Is The Difference Between A Window And A Frame?
Which Class Is Extended By All Other Classes?
Can An Object Be Garbage Collected While It Is Still Reachable?
Is The Ternary Operator Written X : Y ? Z Or X ? Y : Z ?
What Is The Difference Between The Font And Fontmetrics Classes?
How Is Rounding Performed Under Integer Division?
What Happens When A Thread Cannot Acquire A Lock On An Object?
What Is The Difference Between The Reader/writer Class Hierarchy And The Inputstream/outputstream Class Hierarchy?
What Classes Of Exceptions May Be Caught By A Catch Clause?
If A Class Is Declared Without Any Access Modifiers, Where May The Class Be Accessed?
What Is The Simpletimezone Class?
What Is The Map Interface?
Does A Class Inherit The Constructors Of Its Superclass?
For Which Statements Does It Make Sense To Use A Label?
What Is The Purpose Of The System Class?
Which Textcomponent Method Is Used To Set A Textcomponent To The Read-only State?
How Are The Elements Of A Cardlayout Organized?
Is &&= A Valid Java Operator?
Name The Eight Primitive Java Types.
Which Class Should You Use To Obtain Design Information About An Object?
What Is The Relationship Between Clipping And Repainting?
Is “abc” A Primitive Value?
What Is The Relationship Between An Event-listener Interface And An Event-adapter Class?
What Restrictions Are Placed On The Values Of Each Case Of A Switch Statement?
What Modifiers May Be Used With An Interface Declaration?
Is A Class A Subclass Of Itself?
What Is The Highest-level Event Class Of The Event-delegation Model?
What Event Results From The Clicking Of A Button?
How Can A Gui Component Handle Its Own Events?
How Are The Elements Of A Gridbaglayout Organized?
What Advantage Do Java’s Layout Managers Provide Over Traditional Windowing Systems?
What Is The Collection Interface?
What Modifiers Can Be Used With A Local Inner Class?
What Is The Difference Between Static And Non-static Variables?
What Is The Difference Between The Paint() And Repaint() Methods?
What Is The Purpose Of The File Class?
Can An Exception Be Rethrown?
Which Math Method Is Used To Calculate The Absolute Value Of A Number?
How Does Multithreading Take Place On A Computer With A Single Cpu?
When Does The Compiler Supply A Default Constructor For A Class?
When Is The Finally Clause Of A Try-catch-finally Statement Executed?
Which Class Is The Immediate Superclass Of The Container Class?
If A Method Is Declared As Protected, Where May The Method Be Accessed?
How Can The Checkbox Class Be Used To Create A Radio Button?
Which Non-unicode Letter Characters May Be Used As The First Character Of An Identifier?
What Restrictions Are Placed On Method Overloading?
What Happens When You Invoke A Thread’s Interrupt Method While It Is Sleeping Or Waiting?
What Is Casting?
What Is The Return Type Of A Program’s Main() Method?
Name Four Container Classes.
What Is The Difference Between A Choice And A List?
What Class Of Exceptions Are Generated By The Java Run-time System?
What Class Allows You To Read Objects Directly From A Stream?
What Is The Difference Between A Field Variable And A Local Variable?
Under What Conditions Is An Object’s Finalize() Method Invoked By The Garbage Collector?
What Is The Relationship Between A Method’s Throws Clause And The Exceptions That Can Be Thrown During The Method’s Execution?
What Is The Difference Between The Jdk 1.02 Event Model And The Event-delegation Model Introduced With Jdk 1.1?
How Is It Possible For Two String Objects With Identical Values Not To Be Equal Under The == Operator?
Why Are The Methods Of The Math Class Static?
What Checkbox Method Allows You To Tell If A Checkbox Is Checked?
What State Is A Thread In When It Is Executing?
What Are The Legal Operands Of The Instanceof Operator?
What An I/o Filter?
If An Object Is Garbage Collected, Can It Become Reachable Again?

Java scenario based interview questions

What Is The Set Interface?
What Classes Of Exceptions May Be Thrown By A Throw Statement?
What Are E And Pi?
Are True And False Keywords?
What Is A Void Return Type?
What Is The Purpose Of The Enableevents() Method?
What Is The Difference Between The File And Randomaccessfile Classes?
What Happens When You Add A Double Value To A String?
What Is Your Platform’s Default Character Encoding?
Which Package Is Always Imported By Default?
What Interface Must An Object Implement Before It Can Be Written To A Stream As An Object?
How Are This And Super Used?
What Is A Compilation Unit?
What Interface Is Extended By Awt Event Listeners?
What Restrictions Are Placed On Method Overriding?
How Can A Dead Thread Be Restarted?
What Happens If An Exception Is Not Caught?
What Is A Layout Manager?
Which Arithmetic Operations Can Result In The Throwing Of An Arithmeticexception?
What Are Three Ways In Which A Thread Can Enter The Waiting State?
Can An Abstract Class Be Final?
What Is The Resourcebundle Class?
What Happens If A Try-catch-finally Statement Does Not Have A Catch Clause To Handle An Exception That Is Thrown Within The Body Of The Try Statement?
What Is Numeric Promotion?
What Is The Difference Between A Scrollbar And A Scrollpane?
What Is The Difference Between A Public And A Non-public Class?
To What Value Is A Variable Of The Boolean Type Automatically Initialized?
Can Try Statements Be Nested?
What Is The Difference Between The Prefix And Postfix Forms Of The ++ Operator?
What Is The Purpose Of A Statement Block?
What Is A Java Package And How Is It Used?
What Modifiers May Be Used With A Top-level Class?
What Are The Object And Class Classes Used For?
How Does A Try Statement Determine Which Catch Clause Should Be Used To Handle An Exception?
Can An Unreachable Object Become Reachable Again?
When Is An Object Subject To Garbage Collection?
What Method Must Be Implemented By All Threads?
What Methods Are Used To Get And Set The Text Label Displayed By A Button Object?
Which Component Subclass Is Used For Drawing And Painting?
What Are Synchronized Methods And Synchronized Statements?
What Are The Two Basic Ways In Which Classes That Can Be Run As Threads May Be Defined?
What Are The Problems Faced By Java Programmers Who Don’t Use Layout Managers?
What’s Java Swing?
What Is Jfc?
What Is Awt?
What Are The Differences Between Swing And Awt?
What Are Heavy Weight Components ?
What Is Lightweight Component?
What Is Double Buffering ?
What Is An Event In Swing?
What Is An Event Handler In Swing?
Give Us The Name Of The List Layoutmanagers In Java?
Difference B/w Paint() And Paintcomponent()?
What Is The Relationship B/w The Canvas Class And The Graphics Class?
When Should The Method Invokelater() Be Used?
What Is A Convertor?
What Is The Difference Between Jfc & Wfc?
What Is Struts?
How Is The Mvc Design Pattern Used In Struts Framework?
Who Makes The Struts?
Why It Called Struts?
Do We Need To Pay The Struts If Being Used In Commercial Purpose?
What Are The Core Classes Of Struts?
What Is The Design Role Played By Struts?
How Struts Control Data Flow?
What Configuration Files Are Used In Struts?
What Helpers In The Form Of Jsp Pages Are Provided In Struts Framework?
Is Struts Efficient?
How You Will Enable Front-end Validation Based On The Xml In Validation.xml?
What Is Actionservlet?
How You Will Make Available Any Message Resources Definitions File To The Struts Framework Environment?
What Is Action Class?
Write Code Of Any Action Class?
What Is Actionform?

Java interview questions for 3 years experience

What Is Struts Validator Framework?
Give The Details Of Xml Files Used In Validator Framework?
Why Do We Need Struts?
How Does Struts Work?
Is Struts Compatible With Other Java Technologies?
Who Wrote Struts?
Why Is It Called Struts?
Do I Have To Credit Struts On My Own Website?
Where Can I Get A Copy Of Struts?
How Do I Install Struts?
When Do I Need “struts.jar” On My Classpath?
Does Struts Include Its Own Unit Tests?
If The Framework Doesn’t Do What I Want, Can I Request That A Feature Be Added?
Where Can I Get Help With Struts?
What’s The Difference Between Struts And Turbine? What’s The Difference Between Struts And Espresso?
Why Aren’t The Struts Tags Maintained As Part Of The Jakarta Taglibs Project ?
Are The Struts Tags Xhtml Compliant ?
Will The Struts Tags Support Other Markup Languages Such As Wml ?
What About Jstl And Javaserver Faces ?
Is There A Particularly Good Ide To Use With Struts?
Why Was Reload Removed From Struts (since 1.1)?
What Is A Modular Application? What Does Module-relative Mean?
Why Are Some Of The Class And Element Names Counter-intuitive?
Why Is Actionform A Base Class Rather Than An Interface?
Do Actionforms Have To Be True Javabeans?
Can I Use Multiple Html Form Elements With The Same Name?
Why Doesn’t The Focus Feature On The Tag Work In Every Circumstance?
Why Are My Checkboxes Not Being Set From On To Off?
Can’t I Just Create Some Of My Javabeans In The Jsp Using A Scriptlet?
Can I Use Javascript To Submit A Form?
How Can I Scroll Through List Of Pages Like The Search Results In Google?
Why Do The Struts Tags Provide For So Little Formatting?
Why Does The Tag Url-encode Javascript And Mailto Links?
Why Does The Option Tag Render Selected=selected Instead Of Just Selected?
Do I Have To Use Jsps With My Application?
Can I Have An Action Without A Form?
Can You Give Me A Simple Example Of Using The Requiredif Validator Rule?
When Is The Best Time To Validate Input?
How Can I Avoid Validating A Form Before Data Is Entered?
Declarative Exception Handling
What Is Hibernate?
What Is Orm?
What Does An Orm Solution Comprises Of?
What Are The Different Levels Of Orm Quality?
What Is A Pure Relational Orm?
What Is A Meant By Light Object Mapping?
What Is A Meant By Medium Object Mapping?
What Is Meant By Full Object Mapping?
What Are The Benefits Of Orm And Hibernate?
How Does Hibernate Code Looks Like?
What Is A Hibernate Xml Mapping Document And How Does It Look Like?
What The Core Interfaces Are Of Hibernate Framework?
What Are Callback Interfaces?
What Are Extension Interfaces?
What Are The Extension Interfaces That Are There In Hibernate?
What Are Different Environments To Configure Hibernate?
What Is The File Extension You Use For Hibernate Mapping File?
What Do You Create A Sessionfactory?
What Is Meant By Method Chaining?
What Does Hibernate.properties File Consist Of?
What Should Sessionfactory Be Placed So That It Can Be Easily Accessed?
What Are Pojos?
What Is Object/relational Mapping Metadata?
What Is Hql?
What Is Attribute Oriented Programming?
What Are The Different Methods Of Identifying An Object?
What Are The Different Approaches To Represent An Inheritance Hierarchy?
What Are Managed Associations And Hibernate Associations?
Why Do You Need Orm Tool Like Hibernate?
What Are The Main Advantages Of Orm Like Hibernate?
What Are The Core Interfaces Of Hibernate Framework?
What Is A Hibernatetemplate?
What Are The Benefits Of Hibernatetemplate?
What Is Hibernate Proxy?
Explain The Types Of Hibernate Instance States.
What Are Collection Types In Hibernate?
What Is Lazy Initialization In Hibernate?
What Is Lazy Fetching In Hibernate?
What Is The Difference Between Sorted And Ordered Collection In Hibernate?
Explain The Advantages And Disadvantages Of Detached Objects.
What Is Hibernate Query Language (hql)?
Explain The General Flow Of Hibernate Communication With Rdbms.
Explain The Role Of Session Interface In Hibernate.
State The Role Of Sessionfactory Interface Plays In Hibernate.
What Is The Difference Between Merge And Update?
What Is The Advantage Of Hibernate Over Jdbc?
Why Hibernate Is Advantageous Over Entity Beans & Jdbc?
Explain The Main Difference Between Entity Beans And Hibernate.
Explain The Difference Between Hibernate And Spring.
How Will You Configure Hibernate?
What Is A Sessionfactory? Is It A Thread-safe Object?
What Is A Session? Can You Share A Session Object Between Different Theads?
What Are The Benefits Of Detached Objects?
What Are The Pros And Cons Of Detached Objects?
How Does Hibernate Distinguish Between Transient (i.e. Newly Instantiated) And Detached Objects?
What Is The Difference Between The Session.get() Method And The Session.load() Method?
What Is The Difference Between The Session.update() Method And The Session.lock() Method?
How Would You Reatach Detached Objects To A Session When The Same Object Has Already Been Loaded Into The Session?
What Are The General Considerations Or Best Practices For Defining Your Hibernate Persistent Classes?
How Will You Communicate Between Two Applets?
How Do You Communicate In Between Applets And Servlets?
What Is An Applet? Should Applets Have Constructors?
How Will You Initialize An Applet?
How To Insert Your Applets Into Frontpage?
In Our Urls And In The Text Of The Buttons We Have Comma. Its Causing An Error. Is There A Way To Change The Delimiting Character For The Menu Arguments?
What Is The Order Of Method Invocation In An Applet?
What Are The Applets Life Cycle Methods? Explain Them?
What Is The Sequence For Calling The Methods By Awt For Applets?
How Do Applets Differ From Applications?
Can We Pass Parameters To An Applet From Html Page To An Applet? How?
How Do We Read Number Information From My Applets Parameters, Given That Applets Getparameter() Method Returns A String?
How Can I Arrange For Different Applets On A Web Page To Communicate With Each Other?
How Do I Select A Url From My Applet And Send The Browser To That Page?
Can Applets On Different Pages Communicate With Each Other?
Which Classes And Interfaces Does Applet Class Consists?
What Is Appletstub Interface?
What Are The Applets Information Methods?
What Are The Steps Involved In Applet Development?
Which Method Is Used To Output A String To An Applet? Which Function Is This Method Included In?
When Is Update Method Called?

Java interview questions for 5 years experience

What Is A Message Driven Bean, What Functions Does A Message Driven Bean Have And How Do They Work In Collaboration With Jms?
How Does Concurrency Work For Message-driven Beans?
What Is The Difference Between Message Driven Beans And Stateless Session Beans?
What Is Message Driven Beam?
What Is Session Bean. What Are The Various Types Of Session Bean?
What Is The Difference Between Stateful Session Bean And Stateless Session Bean
What Are The Call Back Methods In Session Bean?
When You Will Chose Stateful Session Bean And Stateless Session Bean
What Is The Relationship Between Enterprise Javabeans And Javabeans?
How To Implement A Bound Property In Your Bean Application?
How And When Will The Javabeans Migration Assistant To Activex Be Available?
Why Would A Developer Need The Javabeans Migration Assistant For Activex?
Can Javabeans Use Dcom As Its Network Model?
Can Both Java Applets And Javabeans Components Use The Infobus?
Javabeans Has Mechanisms Like Bound Properties For Data Transfer Between Components. Why Is The Infobus Necessary?
Is Infobus Easy To Use?
Does The Infobus Compete With Javabeans?
What Is The Infobus?
What Are/is Enterprise Javabeans?
Who Is Developing The Javabeans Migration Assistant To Activex?
Why Is The Javabeans Bridge For Activex Only Available On Windows/x86?
What Is The Relation Between The Infobus And Rmi?
Difference Between Java Beans And Enterprise Java Beans?
Is The Infobus Client Side Only?
Will The General Public Have Access To The Infobus Apis?
How Does The Infobus Relate To Javabeans?
What Is Glasgow?
How To Create Bound Property In Bean Application?
What Is The Serializable Class In Java Beans?
How To Control Serialization In Java Beans?
What Is Introspection Properties In Java Beans?
What Are Introspection Api In Java Beans?
What Is Bean Customization?
What Is Ejb Container?
What Is Ejb Context?
What Is Ejb Home Object?
What Is Ejb Object?
What Is Entity Bean?
What Is Ejb Server?
What Is Enterprise Information System?
What Is Enterprise Javabeans?
What Is Enterprise Javabeans Query Language?
What Is Enterprise Bean Provider?
What Is An Entity?
What Is Entity Reference?
What Are The Security Implications For Downloading Beans Over The Internet?
Why Do I Get A Duplicate Name Error When Loading A Jar File?
What Is The Relationship Between Sun S Jfcs And Javabeans?
Are There Javabeans Components Available That I Can Buy Today?
What Kind Of Industry Support Exists For Javabeans?
Why A Component Architecture For The Java Platform?
Is Javabeans A Complete Component Architecture?
Why Are Component Architectures Useful?
What Is A Bean? Why Is Not A Bean An Applet?
Difference Between Java Bean And Bean?
Write A Simple Bean Program?
What Is Property Editor In Java Beans?
What Are The Purpose Of Introspection?
What Are Externizable Interface?
What Is Bean Persistance Property?
Why Do I Get A Nullpointerexception When Loading A Jar File Into The Beanbox?
What Are Java Beans?
What Are The Different Kinds Of Enterprise Beans?
What Are The Methods Of Entity Bean?what Is The Difference Between Container-managed Persistent (cmp) Bean And Bean-managed Persistent(bmp) ?
What Is Software Architecture Of Ejb?
Can Entity Beans Have No Create() Methods?
What Is Bean Managed Transaction?
What Are Transaction Attributes?
What Are Transaction Isolation Levels In Ejb?
How Ejb Invocation Happens?
Is It Possible To Share An Httpsession Between A Jsp And Ejb? What Happens When I Change A Value In The Httpsession From Inside An Ejb?
The Ejb Container Implements The Ejbhome And Ejbobject Classes. For Every Request From A Unique Client, Does The Container Create A Separate Instance Of The Generated Ejbhome And Ejbobject Classes?
Can The Primary Key In The Entity Bean Be A Java Primitive Type Such As Int?
Can You Control When Passivation Occurs?
What Is The Advantage Of Using Entity Bean For Database Operations, Over Directly Using Jdbc Api To Do Database Operations? When Would I Use One Over The Other?
What Is Ejb Ql?
Brief Description About Local Interfaces?
What Are The Special Design Care That Must Be Taken When You Work With Local Interfaces?
What Happens If Remove( ) Is Never Invoked On A Session Bean?
How Can I Call One Ejb From Inside Of Another Ejb?
What Is An Ejb Context?
What Are The Two Important Tcp Socket Classes?
What Technologies Are Included In J2ee?
What Is The Difference Between Ejb And Java Beans?

Java interview questions for 8 years experience

What Is Ejb Role In J2ee?
Tell Me Something About Local Interfaces.
What Is Enterprise Javabeans (ejb) Container?
What Is In-memory Replication?
What Is Ripple Effect?
What Is A Clone?
What Are The Types Of Scaling?
What Is A Server Group?
What Is The New Basic Requirement For A Cmp Entity Bean Class In 2.0 From That Of Ejb 1.1?
What’s New In The Ejb 2.0 Specification?
How Can I Access Ejb From Asp?
What Is The Relationship Between Local Interfaces And Container-managed Relationships?
What Is Ejbdoclet?
What Is The Difference Between Session And Entity Beans?
Is It Legal To Have Static Initializer Blocks In Ejb?
What Are Local Interfaces? Describe.
What Is Difference Between Ejb 1.1 And Ejb 2.0?
What Is The Difference Between Ejbcreate() And Ejbpostcreate?
Can I Map More Than One Table In A Cmp?
Is Decorator An Ejb Design Pattern?
What Is The Difference Between Ear, Jar And War File?
What Is Re-entrant. Is Session Beans Reentrant. Is Entity Beans Reentrant?
How Many Ejb Objects Are Created For A Bean?
What Is Deployment Descriptor?
What Are The Call Back Methods In Entity Bean?
What Is Local Interface. How Values Will Be Passed?
What Is Abstract Schema?
What Is The Difference Between Find And Select Methods In Ejb?
How Does A Servlet Communicate With A Jsp Page?
Are Enterprise Beans Allowed To Use Thread.sleep()?
Is It Possible To Specify Multiple Jndi Names When Deploying An Ejb?
Is It Possible To Write Two Ejb’s That Share The Same Remote And Home Interfaces, And Have Different Bean Classes? If So, What Are The Advantages/disadvantages?
Can An Ejb Send Asynchronous Notifications To Its Clients?
Is There A Guarantee Of Uniqueness For Entity Beans?
Can A Class Be It’s Own Event Handler? Explain How To Implement This.
Why Does Jcomponent Have Add() And Remove() Methods But Component Does Not?
How Would You Create A Button With Rounded Edges?
If I Wanted To Use A Solarisui For Just A Jtabbedpane, And The Metal Ui For Everything Else, How Would I Do That?
What Is The Difference Between The ‘font’ And ‘fontmetrics’ Class?
What Class Is At The Top Of The Awt Event Hierarchy?
Explain How To Render An Html Page Using Only Swing.
How Would You Detect A Keypress In A Jcombobox?
Why Should The Implementation Of Any Swing Callback (like A Listener) Execute Quickly?
In What Context Should The Value Of Swing Components Be Updated Directly?
Why Would You Use Swingutilities.invokeandwait Or Swingutilities.invokelater?
If Your Ui Seems To Freeze Periodically, What Might Be A Likely Reason?
Which Swing Methods Are Thread-safe?
Why Won’t The Jvm Terminate When I Close All The Application Windows?
Which Method Is Used For Setting Security In Applets?
What Is Jms?
How Jms Is Different From Rpc?
What Are The Advantages Of Jms?
Are You Aware Of Any Major Jms Products Available In The Market?
What Are The Different Types Of Messages Available In The Jms Api?
What Are The Different Messaging Paradigms Jms Supports?
What Is The Difference Between Topic And Queue?
What Is The Role Of Jms In Enterprise Solution Development?
What Is The Use Of Message Object?
What Is The Basic Difference Between Publish Subscribe Model And P2p Model?
What Is The Use Of Bytesmessage?
What Is The Use Of Streammessage?
What Is The Use Of Textmessage?
What Is The Use Of Objectmessage?
What Is The Use Of Mapmessage?
What Is The Difference Between Bytesmessage And Streammessage??
What Is Point-to-point Messaging?
What Is The Advantage Of Persistent Message Delivery Compared To Nonpersistent Delivery?
Give An Example Of Using The Publish/subscribe Model.
How Is A Java Object Message Delivered To A Non-java Client?
What Is Mdb And What Is The Special Feature Of That?
What Are The Types Of Messaging?
What Are The Core Jms-related Objects Required For Each Jms-enabled Application?
What Is The Use Of Load And Require In Ruby?
What Function Converts All Html Special Symbols To Html Entities In Ruby?
What Is The Log That Has To Seen To Check For An Error In Ruby Rails?
What Is The Scope Of A Local Variable In Ruby?
What Is The Use Of Global Variable $ In Ruby?
Where Does The Start_tabnav Gets Informations For Tabs Rendering In Ruby Rail?
What Type Messaging Is Provided By Jms?
What Are The Different Parts Of A Jms Message ?
What Is The Role Of The Jms Provider?
What Is The Difference Between Byte Message And Stream Message?
What Is Byte Message ?
What Is Object Message ?
What Is Text Message?
What Is Map Message?
What Is Stream Message ?
What Is The Difference Between Queue And Topic ?
What Is Messaging?
Explain About The Programming Language Ruby?
Explain About Class Libraries In Ruby?
Explain About Portability?
Explain About Garbage Collection Feature Of Ruby?
Explain About The Command Line Options?
Explain About Environment Variables Present In Ruby?
Explain About Operators In Ruby?
Explain About The Defined Operator?
Explain About Methods?
Explain About Normal Method Class?
Explain About Ruby Names?
Explain About Variables?
Explain About Class Variable And Global Variable?
How Does Ruby Deal With Extremely Large Numbers?
Explain About Float, Dig And Max?
Explain About Interpolation?
Explain About Ruby Code Blocks?
What Is Jboss?
What Is Jta?
How Can You Start A Jta Transaction From A Servlet Deployed On Jboss ?
Which Component Handles Cluster Communication In Jboss ?
Is It Possible To Put A Jboss Server Instance Into Multiple Cluster At The Same Time ?
What’s Jboss Cache In Short ?
What Do You Know About Seam ?
Does Seam Run On Other Application Servers Besides Jboss ?
What’s Jboss Jbpm ?
Can I Run Seam Outside Of Jboss As?
Can I Run Seam In A J2ee Environment?
Can I Run Seam With Jdk 1.4 And Earlier?
Where Can I Find Seam Examples And Documentation?
Where Can I Ask Questions And Make Suggestions About Seam?
Are There Books About Seam?
Can I Use Ajax With Seam?
Can I Unit Test Seam Applications Without Starting The Application Server?
What’s The Difference Between Hibernate And Ejb 3 ? Don’t You Think Ejb 3 Is Just A Clone Of Hibernate ?
Which Hibernate Object Wraps The Jdbc Connection ?
Ok, Is The Session Factory Thread Safe?
What If You Need To Span Your Transaction Across Multiple Servlet Invocations ?

Java interview questions for 10 years experience

What Are The Differences Between Ejb 3.0 And Ejb 2.0 ?
What Is The Diffrence Between A Local-tx-datasource And A Xa-datasource? Can You Use Transactions In Both ?
What Do You Need To Set-up A Cluster With Jboss ?
What Optimization Could I Use If The Ejb Container Is The Only Point Of Write Access To The Database ?
Explain The Difference Between Nil And False In Ruby?
Explain The Use Of Global Variable $ In Ruby?
What Is The Use Of Super In Ruby Rails?
Interpolation Is A Very Important Process In Ruby, Comment?
Describe The Environment Variables Present In Ruby.
Explain The Concepts And Capabilities Of Garbage Collection Feature Of Ruby?
Describe Class Libraries In Ruby?
What Is Rails?
Why Ruby On Rails?
How May Messaging Models Do Jms Provide For And What Are They?
Are We Allowed To Change The Transaction Isolation Property In Middle Of A Transaction?
Should Synchronization Primitives Be Used On Bean Methods?
Is Method Overloading Allowed In Ejb?
What Is The Default Transaction Attribute For An Ejb?
Is It Possible To Stop The Execution Of A Method Before Completion In A Sessionbean?
What Do You Understand By The Term Network?
Explain The Generic Term Internet.
What Does Tcp/ip Stand For And What Is Its Use?
What Do You Understand By The Term Client-server Application?
What Are Protocols? What Are They Used For?
What Is The Relationship Between Servers And Ports?
What Is The Applet Client Restriction?
Why Servers Should Be Multithreading? Explain.
Why A Client Should Be Multithreading? Explain.
What Is Chat Area? Explain.
What Are The Applet’s Life Cycle Methods? Explain Them.
Which Classes And Interfaces Does Applet Class Consist?
What Are The Applet’s Information Methods?
How Does Ejb Invocation Happens?
What Is Clustering? What Are The Different Algorithms Used For Clustering?

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399 Core Java Interview Questions For Experienced

Core Java Interview Questions. Coding compilers collected list of 399 core java interview questions for freshers to experienced developers. This list of interview questions includes, java interview questions for 3 years experience, core java interview questions for senior developers, java interview questions for 2 years experience, java interview questions for 5 years experience. We are sure that after going through these java interview questions, you will be in a position to handle any java job interview. Happy learning.!

Core Java Interview Questions

What Do You Mean By Platform Independence?

Are Jvm’s Platform Independent?
What Is A Jvm?
What Is The Difference Between A Jdk And A Jvm?
What Is A Pointer And Does Java Support Pointers?
What Is The Base Class Of All Classes?
Does Java Support Multiple Inheritance?
Is Java A Pure Object Oriented Language?
Are Arrays Primitive Data Types?
What Is Difference Between Path And Classpath?
What Are Local Variables?
What Are Instance Variables?
How To Define A Constant Variable In Java?
Should A Main Method Be Compulsorily Declared In All Java Classes?
What Is The Return Type Of The Main Method?
Why Is The Main Method Declared Static?
What Is The Arguement Of Main Method?
Can A Main Method Be Overloaded?
Can A Main Method Be Declared Final?
Does The Order Of Public And Static Declaration Matter In Main Method?
Can A Source File Contain More Than One Class Declaration?
What Is A Package?
Which Package Is Imported By Default?
Can A Class Declared As Private Be Accessed Outside It’s Package?
Can A Class Be Declared As Protected?
What Is The Access Scope Of A Protected Method?
What Is The Purpose Of Declaring A Variable As Final?
What Is The Impact Of Declaring A Method As Final?
I Don’t Want My Class To Be Inherited By Any Other Class. What Should I Do?
Can You Give Few Examples Of Final Classes Defined In Java Api?
How Is Final Different From Finally And Finalize?
Can A Class Be Declared As Static?
When Will You Define A Method As Static?
What Are The Restriction Imposed On A Static Method Or A Static Block Of Code?
I Want To Print “hello” Even Before Main Is Executed. How Will You Acheive That?
What Is The Importance Of Static Variable?
Can We Declare A Static Variable Inside A Method?
What Is An Abstract Class And What Is It’s Purpose?
Can A Abstract Class Be Declared Final?
What Is Use Of A Abstract Variable?
Can You Create An Object Of An Abstract Class?
Can A Abstract Class Be Defined Without Any Abstract Methods?
Class C Implements Interface I Containing Method M1 And M2 Declarations. Class C Has Provided Implementation For Method M2. Can I Create An Object Of Class C?

Java Interview Questions for 2 Years Experience

Can A Method Inside A Interface Be Declared As Final?
Can An Interface Implement Another Interface?
Can An Interface Extend Another Interface?
Can A Class Extend More Than One Class?
Why Is An Interface Be Able To Extend More Than One Interface But A Class Can’t Extend More Than One Class?
Can An Interface Be Final?
Can A Class Be Defined Inside An Interface?
Can An Interface Be Defined Inside A Class?
What Is A Marker Interface?
Which Oo Concept Is Achieved By Using Overloading And Overriding?
If I Only Change The Return Type, Does The Method Become Overloaded?
Why Does Java Not Support Operator Overloading?
Can We Define Private And Protected Modifiers For Variables In Interfaces?
What Is Externalizable?
What Modifiers Are Allowed For Methods In An Interface?
What Is A Local, Member And A Class Variable?
What Is An Abstract Method?
What Value Does Read() Return When It Has Reached The End Of A File?
Can A Byte Object Be Cast To A Double Value?
What Is The Difference Between A Static And A Non-static Inner Class?
A non-static inner class may have object instances that are associated with instances of the class’s outer class. A static inner class does not have any object instances.
What Is An Object’s Lock And Which Object’s Have Locks?
What Is The % Operator?
When Can An Object Reference Be Cast To An Interface Reference?
Which Class Is Extended By All Other Classes?
Which Non-unicode Letter Characters May Be Used As The First Character Of An Identifier?
What Restrictions Are Placed On Method Overloading?
What Is Transient Variable?
What Is Collection Api?
What Is Casting?
What Is The Return Type Of A Program’s Main() Method?
If A Variable Is Declared As Private, Where May The Variable Be Accessed?
What Do You Understand By Private, Protected And Public?
What Is Downcasting ?
What Modifiers May Be Used With An Inner Class That Is A Member Of An Outer Class?
How Many Bits Are Used To Represent Unicode, Ascii, Utf-16, And Utf-8 Characters?
What Restrictions Are Placed On The Location Of A Package Statement Within A Source Code File?
What Is A Native Method?
What Are Order Of Precedence And Associativity, And How Are They Used?
Can An Anonymous Class Be Declared As Implementing An Interface And Extending A Class?
What Is The Range Of The Char Type?
What Is The Range Of The Short Type?
Why Isn’t There Operator Overloading?
What Does It Mean That A Method Or Field Is “static”?
Is Null A Keyword?
Which Characters May Be Used As The Second Character Of An Identifier,but Not As The First Character Of An Identifier?
Is The Ternary Operator Written X : Y ? Z Or X ? Y : Z ?
How Is Rounding Performed Under Integer Division?
If A Class Is Declared Without Any Access Modifiers, Where May The Class Be Accessed?
Does A Class Inherit The Constructors Of Its Superclass?
Name The Eight Primitive Java Types.
What Restrictions Are Placed On The Values Of Each Case Of A Switch Statement?
What Is The Difference Between A While Statement And A Do Statement?
What Modifiers Can Be Used With A Local Inner Class?
When Does The Compiler Supply A Default Constructor For A Class?
If A Method Is Declared As Protected, Where May The Method Be Accessed?
What Are The Legal Operands Of The Instanceof Operator?
Are True And False Keywords?
What Happens When You Add A Double Value To A String?
What Is The Diffrence Between Inner Class And Nested Class?
Can An Abstract Class Be Final?
What Is Numeric Promotion?
What Is The Difference Between A Public And A Non-public Class?
To What Value Is A Variable Of The Boolean Type Automatically Initialized?
What Is The Difference Between The Prefix And Postfix Forms Of The ++ Operator?
What Restrictions Are Placed On Method Overriding?
What Is A Java Package And How Is It Used?
What Modifiers May Be Used With A Top-level Class?
What Is The Difference Between An If Statement And A Switch Statement?
Can A Method Be Overloaded Based On Different Return Type But Same Argument Type ?
What Happens To A Static Var That Is Defined Within A Method Of A Class ?
How Many Static Init Can You Have ?
What Is The Difference Between Method Overriding And Overloading?
What Is Constructor Chaining And How Is It Achieved In Java ?
What Is The Difference Between The Boolean & Operator And The && Operator?
Which Java Operator Is Right Associative?
Can A Double Value Be Cast To A Byte?

Java Interview Questions for 3 Years Experience

 What Is The Difference Between A Break Statement And A Continue Statement?
Can A For Statement Loop Indefinitely?
To What Value Is A Variable Of The String Type Automatically Initialized?
What Is The Difference Between A Field Variable And A Local Variable?
How Are This() And Super() Used With Constructors?
What Does It Mean That A Class Or Member Is Final?
What Does It Mean That A Method Or Class Is Abstract?
Can An Anonymous Class Be Declared As Implementing An Interface And Extending A Class?
What Is The Catch Or Declare Rule For Method Declarations?
What Are Some Alternatives To Inheritance?
What Are The Different Identifier States Of A Thread?
What Is Garbage Collection? What Is The Process That Is Responsible For Doing That In Java?
What Kind Of Thread Is The Garbage Collector Thread?
What Is A Daemon Thread?
How Will You Invoke Any External Process In Java?
What Is The Finalize Method Do?
What Is Mutable Object And Immutable Object?
What Is The Basic Difference Between String And Stringbuffer Object?
What Is The Purpose Of Void Class?
What Is Reflection?
What Is The Base Class For Error And Exception?
What Is The Byte Range?
What Is The Implementation Of Destroy Method In Java.. Is It Native Or Java Code?
What Are The Approaches That You Will Follow For Making A Program Very Efficient?
What Is A Databasemetadata?
What Is Locale?
How Will You Load A Specific Locale?
What Is Jit And Its Use?
Is Jvm A Compiler Or An Interpreter?
What Is The Purpose Of Assert Keyword Used In Jdk1.4.x?
How Will You Get The Platform Dependent Values Like Line Separator, Path Separator, Etc., ?
Is “abc” A Primitive Value?
What Is Singleton?
Can You Instantiate The Math Class?
What Are The Methods In Object?
What Is Aggregation?
What Is Composition?
What Is Inner Class?
What Is Nested Class?
What Is The Major Difference Between Linkedlist And Arraylist?
What Is The Significance Of Listiterator?
What Is The Final Keyword Denotes?
What Is Skeleton And Stub? What Is The Purpose Of Those?
Why Does It Take So Much Time To Access An Applet Having Swing Components The First Time?
What Is The Difference Between Instanceof And Isinstance?
What Does The “final” Keyword Mean In Front Of A Variable? A Method? A Class?
Describe What Happens When An Object Is Created In Java?
What Is The Difference Amongst Jvm Spec, Jvm Implementation, Jvm Runtime ?
How Does Java Handle Integer Overflows And Underflows?
Why Are There No Global Variables In Java?
Whats The Difference Between Notify() And Notifyall()?
How Can My Application Get To Know When A Httpsession Is Removed?
What Interface Must An Object Implement Before It Can Be Written To A Stream As An Object?
What Is Your Platform’s Default Character Encoding?
What An I/o Filter?
What Is The Purpose Of Finalization?
Which Class Should You Use To Obtain Design Information About An Object?
What Is The Purpose Of The System Class?
Can We Use The Constructor, Instead Of Init(), To Initialize Servlet?
How Can A Servlet Refresh Automatically If Some New Data Has Entered The Database?

Java Interview Questions for 4 Years Experience

 The Code In A Finally Clause Will Never Fail To Execute, Right?
How Many Messaging Models Do Jms Provide For And What Are They?
What Information Is Needed To Create A Tcp Socket?
What Class.forname Will Do While Loading Drivers?
How Many Jsp Scripting Elements Are There And What Are They?
What Are Stored Procedures? How Is It Useful?
How Do I Include Static Files Within A Jsp Page?
Why Does Jcomponent Have Add() And Remove() Methods But Component Does Not?
How Can I Implement A Thread-safe Jsp Page?
What Is The Difference Between Procedural And Object-oriented Programs?
What Are Encapsulation, Inheritance And Polymorphism?
What Is The Difference Between Assignment And Initialization?
What Is Oops?
What Are Class, Constructor And Primitive Data Types?
What Is An Object And How Do You Allocate Memory To It?
What Is The Difference Between Constructor And Method?
What Are Methods And How Are They Defined?
What Is The Use Of Bin And Lib In Jdk?
How Many Ways Can An Argument Be Passed To A Subroutine And Explain Them?
What Is The Difference Between An Argument And A Parameter?
How Would You Implement A Thread Pool?
What Are The Advantages And Disadvantages Of Reference Counting In Garbage Collection?
Why Java Is Said To Be Pass-by-value ?
What Are The Access Modifiers Available In Java?
What Is The Difference Between A Switch Statement And An If Statement?
What Are Synchronized Methods And Synchronized Statements?
What Are The Different Ways In Which A Thread Can Enter Into Waiting State?
What Is The Difference Between Static And Non Static Variables ?
What Is The Difference Between Notify And Notifyall Method?
What Are Different Type Of Exceptions In Java?
Explain About The Select Method With An Example?
Can There Be An Abstract Class With No Abstract Methods In It?
Can We Define Private And Protected Modifiers For Variables In Interfaces?
What Is Garbage Collection? What Is The Process That Is Responsible For Doing That In Java?
Can There Be An Abstract Class With No Abstract Methods In It?
Can An Interface Have An Inner Class?
What Is User Defined Exception?
What Is The Difference Between Logical Data Independence And Physical Data Independence?
What Are The Practical Benefits, If Any, Of Importing A Specific Class Rather Than An Entire Package (e.g. Import Java.net.* Versus Import Java.net.socket)?
How Many Methods Do U Implement If Implement The Serializable Interface?
What Does The “abstract” Keyword Mean In Front Of A Method? A Class?
You Can Create A String Object As String Str = “abc”; Why Cant A Button Object Be Created As Button Bt = “abc”;? Explain
Can Rmi And Corba Based Applications Interact ?
What Is Passed By Reference And Pass By Value ?
What Is A “stateless” Protocol ?
Difference Between A Class And An Object ?
What Are The Four Corner Stones Of Oop?
What Gives Java It’s “write Once And Run Anywhere” Nature?
How Can A Dead Thread Be Restarted?
What Happens If An Exception Is Not Caught?
What Is A Compilation Unit?
What Is A Task’s Priority And How Is It Used In Scheduling?
What Value Does Readline() Return When It Has Reached The End Of A File?
Can An Object’s Finalize() Method Be Invoked While It Is Reachable?
Does Garbage Collection Guarantee That A Program Will Not Run Out Of Memory?
Is Sizeof A Keyword?
What State Does A Thread Enter When It Terminates Its Processing?
Can A Lock Be Acquired On A Class?
How Are Observer And Observable Used?
What Is A Transient Variable?
Wha Is The Output From System.out.println(“hello”+null); ?
What Are E And Pi?
If An Object Is Garbage Collected, Can It Become Reachable Again?
Can An Exception Be Rethrown?
What Is The Purpose Of The File Class?
Is A Class Subclass Of Itself?
What Modifiers May Be Used With An Interface Declaration?
What Classes Of Exceptions May Be Caught By A Catch Clause?
What Is The Difference Between The Reader/writer Class Hierarchy And The Inputstream/outputstream Class Hierarchy?
Can An Object Be Garbage Collected While It Is Still Reachable?
What Is An Object’s Lock And Which Object’s Have Locks?
How Are Commas Used In The Intialization And Iteration Parts Of A For Statement?
What Must A Class Do To Implement An Interface?
What Is The Difference Between Preemptive Scheduling And Time Slicing?
What Restrictions Are Placed On The Location Of A Package Statement Within A Source Code File?
What Are Wrapped Classes?
Is It Possible To Specify Multiple Jndi Names When Deploying An Ejb?
What Is Java And Their Uses?
What Is Hotjava?
How Can You Say Java Is Object Oriented?
Why Java Is Platform Independent? Explain.
Why Java Is Secure? Explain.
Why Do People Says “java Is Robust”?
How Java Is Similar To C?
What’s The Difference Between Applets And Standalone Program?
Why Java Applets Are More Useful For Intranets As Compared To Internet?
How Can You Set The Applet Size?
How Can You Set An Applet’s Height And Width As A Percentage?
What Is Codebase?
What Is Appletviewer?
Explain, Java Is Compatible With All Servers But Not All Browsers?
What Is The Program Development Process?
What Is The File Type?
What Is Javac_g?
How To Optimize The Javac Output?
What Is The Difference Between Java Applets And Applications?
Can You Explain The Cs Option Of Java Interpreter?
What Is The Statements?
What Is Style And Indentation?
What Is The Program Compilation Process?
What Is Java Literals?
What Is The Primitive Type Byte?
What Is The Primitive Type Short?
Why Call By Value Prevents Parameter Value Change?
What Is Remote Method Invocation (rmi)?
What Is Java Jit Compilers?
What Is The Java Idl System?
What Is Java Beans?
What Is Object-oriented Programming?
What Is Abstraction?
What Is Encapsulation?
How Does The Application Server Handle The Jms Connection?
What Is A Superclass?
Explain The Abstract Class Modifier?
What Is The Final Class Modifier?
Explain The Public Class Modifier.
What Is The Public Field Modifier?
Explain The Private Field Modifier?
Explain The Protected Field Modifier?
Can You Explain The Private Protected Field Modifier?
What Is The Static Field Modifier?
What Is The Final Field Modifier?
Explain The Transient Field Modifier?
Explain The Use Of Volatile Field Modifier?
What Is Default Constructors?
What Is The Public Method Modifier?
What Is The Private Method Modifier?
What Is The Protected Method Modifier?
Explain The Private Protected Method Modifier?
Can You Explain The Final Method Modifier?
What Is The Abstract Method Modifier?
What Is The Synchronized Method Modifier?
Explain The Init Method?
What Is The Destroy Method?
What Is Multithreading?

Java Interview Questions for 5 Years Experience

 How Java Uses The String And Stringbuffer Classes?
What Is The Epoch Date?
What Is An Arrays?
What Is Binary Search?
Can A Private Method Of A Superclass Be Declared Within A Subclass?
What Is Quick Sort?
What Is The Difference Between Final, Finally And Finalize?
In System.out.println( ), What Is System, Out And Println?
What Is Meant By “abstract Interface”?
What Is The Difference Between Swing And Awt Components?
Why Java Does Not Support Pointers?
What Are Parsers? Dom Vs Sax Parser.
What Is A Platform?
What Is The Main Difference Between Java Platform And Other Platforms?
What Is The Java Virtual Machine?
What Is The Java Api?
What Is The Package?
What Is Native Code?
Is Java Code Slower Than Native Code?
What Is The Serialization?
How To Make A Class Or A Bean Serializable?
How Many Methods Are There In The Serializable Interface?
How Many Methods Are There In The Externalizable Interface?
Which Containers Use A Border Layout As Their Default Layout?
What Is Synchronization And Why Is It Important?
What Are Three Ways In Which A Thread Can Enter The Waiting State?
What Is The Preferred Size Of A Component?
Can Java Object Be Locked Down For Exclusive Use By A Given Thread?
Can Each Java Object Keep Track Of All The Threads That Want To Exclusively Access It?
What Is The Purpose Of The Wait(), Notify() And Notifyall() Methods?
What Are The High-level Thread States?
What Is The Collections Api?
What Is The List Interface?
How Many Bits Are Used To Represent Unicode, Ascii, Utf-16 And Utf-8 Characters?
What Is The Properties Class?
What Is The Purpose Of The Runtime Class?
What Is The Purpose Of The Finally Clause Of A Try-catch-finally Statement?
What Is The Locale Class?
What Is A Protected Method?
What Is A Static Method?
What Is The Difference Between A Window And A Frame?
What Are Peerless Components?
What Is The Difference Between The Reader/writer Class Hierarchy And The Inputstream/outputstream Class Hierarchy?
What Is The Difference Between Throw And Throws Keywords?
Name Primitive Java Types?
How Can A Gui Component Handle Its Own Events?
What Advantage Do Java’s Layout Managers Provide Over Traditional Windowing Systems?
What Are The Problems Faced By Java Programmers Who Don’t Use Layout Managers?
What Is The Difference Between Static And Non-static Variables?
What Is The Difference Between The Paint() And Repaint() Methods?
What Is A Container In A Gui?
Is Iterator A Class Or Interface? What Is Its Use?
How You Can Force The Garbage Collection?
Describe The Principles Of Oops?
Explain The Encapsulation Principle?
Explain The Inheritance Principle?
How To Define An Abstract Class?
How To Define An Interface?
Explain The Polymorphism Principle?
Explain The Different Forms Of Polymorphism?
What Are Access Specifiers Available In Java?
What Do You Understand By A Variable?
What Do You Understand By Numeric Promotion?
Differentiate Between A Class And An Object.
What Is The Use Of Object And Class Classes?
What Do You Understand By Casting In Java Language?
What Are The Types Of Casting?
What Do You Understand By Downcasting?
What Do You Understand By Final Value?
What Are Keyboard Events?
What Is The Intersection And Union Methods?
What Are Controls And Their Different Types In Awt?
What Is The Difference Between Choice And List?
What Is The Difference Between Scrollbar And Scrollpane?
Which Containers Use A Flow Layout As Their Default Layout?
What Are Wrapper Classes?
What Is The Difference Between Set And List?
How Can The Checkbox Class Be Used To Create A Radio Button?
Which Textcomponent Method Is Used To Set A Textcomponent To The Read-only State?
What Methods Are Used To Get And Set The Text Label Displayed By A Button Object?
What Is The Difference Between Yield() And Sleep()?
How To Handle A Web Browser Resize Operation?
Explain The Concept Of Hashtables?

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C Program To Print Hello World

C Program To Print Hello World. If you are looking for writing your first C program to Hello World, here in this tutorial we will help you to learn how to write a program to display Hello World in C language.

C Program To Print Hellow World

/* C program to print hello world - HelloWorld.C */

#include <stdio.h>
void main()
{
  printf("Hello World.!");
}

C Program To Print Hellow World Output

Hello World.!

C PROGRAMMING TUTORIALS

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  8. C Program to Add Days to Date
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  11. C Program to Find Maximum and Minimum Numbers
  12. C Program to Read a Text File
  13. C Program to Convert Decimal to Hexadecimal
  14. C Program to Convert Decimal to Binary
  15. C Program to Convert Celsius to Fahrenheit
  16. C Program To Find Absolute Value
  17. Ternary Operator Program in C
  18. C Program For Addition Table Using For Loop
  19. Denomination Program in C
  20. C Program to Print Multiplication Table 

C Program To Find Area Of A Circle

C Program To Find Area Of A Circle. If you are looking for C program to calculate area of a circle, here in this tutorial we will help you to learn how to write a program to find area of a circle in C language.

C Program to Find Area of a Circle

Learn how to write a C program to find area of a circle. Writing C Program to finding area of circle can be done using various techniques but here in this program, we show how to write a C program to calculate area of a circle in a proper way.

C Program to Calculate Area of a Circle Source Code

/* C program to calculate area of a circle - AreaOfCircle.C */
#include <stdio.h>
#include <math.h>
#define PI 3.142
 
void main()
{
 //variable declaration
 float radius, area; 
 //asking user to enter the radius of a circle
 printf("Enter the radius of a circle \n");
 //reading user entered radius value to calculate area
 scanf("%f", &radius);
 //logic to find area of a cirlce
 area = PI * pow(radius, 2); //area of a circle formula
 //printing area of a cirlce
 printf("Area of a circle = %5.2f\n", area);
}

C Program to Find Area of a Circle Source Code

/* C program to find area of a circle - AreaOfCircle.C */

#include<stdio.h>
 
int main() 
{
 //variables declaration
 float radius, area;
 //Taking input from user and reading it
 printf("\nEnter the radius of Circle : ");
 scanf("%d", &radius);
 //formula to find area of a circle
 area = 3.14 * radius * radius;
//printing area of a circle
 printf("\nArea of a Circle is: %f", area);
 
 return (0);
}

C Program to Find Area of a Circle Output

Enter the radius of Circle : 15

Area of a Circle is: 706.5

C PROGRAMMING tutorials

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  2. C Program To Add Digits Of A Number
  3. C Program To Find Leap Year
  4. C Program To Append Data Into A File
  5. C Program to Accept Only Integer Values
  6. C Program To Arrange Numbers In Descending Order
  7. C Program to Add Days to Date
  8. C Program to Add Two Fractions
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  10. C Program to Find Maximum and Minimum Numbers
  11. C Program to Read a Text File
  12. C Program to Convert Decimal to Hexadecimal
  13. C Program to Convert Decimal to Binary
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