Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Ducking is automatic in checked exception?True or false

2 7574

FOR EXAMPLE WE R HAVING TWO LIST ELEMENTS ..BOTH LISTS CONTAINS ID,NAME,PLACE ..I NEED TO COMPARE BOTH IDS IN TWO LISTS,IF ID'S R SAME MEANS WE HAVE ADD THE DETAILS(LIKE NAME,PLACE) TO MAP...HOW IS POSSIBLE ?CAN ANY ONE SUGGEST?

1 3467

what is difference between Interface and abstract class

GCPL,

2 5370

what are the design patterns in struts?

1 3937

Infinite loop using while ?

4 5770

Difference between Primary key and unique key?

4 6598

What is the difference between method and constructor ?

3 5796

If circular link of two objects, then will it be garbage collected ?

TCS,

3 7470

Why we need Finally with try? pls expain with ur example..

BitWise, HDFC, TCS,

3 16656

what are the rules to use try catch finally?

Satyam, UJ,

1 5503

when there is a need of jvm then how we can say that java is a platform independent language?

3 5713

what should do when using multiple catch() block & what should never do for the same?

1 3838

any other way to print the text without using System.out.println() in java?

IBM, Infosys,

5 19522

what is the difference between applet and swing and gui application in java . What we do with the collections set and list interface

CTS, Phoenix Technologies,

2 8857

Why should we create an object? what is a need of it? Apart from access members of a class i want what is a need of object what does it contain?? In normal class to access any member of thaht class we create object where as for static class we access its members using class name. what is a difference between them... thanks in advance.

1 3633

Post New Core Java Questions

Un-Answered Questions { Core Java }

What are the legal parameters?

1006

What flag up means?

1025

Are arrays classes in java?

1028

What is the purpose of object oriented programming?

973

What are the advantages of java inner classes?

1066

What is class variable java?

1006

What is early binding and late binding in java?

1184

What is difference between iterator and enumeration in java?

992

Can one thread block the other thread?

1026

Does java have a compiler?

1026

What invokes a thread's run() method in java programming?

1184

How do you declare an empty string?

1060

Can we extend singleton class in java?

959

What is null mean in java?

1089

What is default exception handling in java?

1028

For More Un-Answered { Core Java } Questions Click Here