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

Core Java Interview Questions

Questions Answers Views Company eMail

What is externalizable?

1114

What happens to a static var that is defined within a method of a class?

1078

What modifiers are allowed for methods in an interface?

1211

Why is an interface be able to extend more than one interface but a class can’t extend more than one class?

1216

Which non-unicode letter characters may be used as the first character of an identifier?

1049

Why does java not support operator overloading?

1183

I want to print “hello” even before main is executed. How will you acheive that?

1147

What is an abstract class and what is it’s purpose?

1012

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?

1686

Can an interface be final?

1077

What is use of a abstract variable?

1048

Can a class be declared as static?

1217

What is the difference between an if statement and a switch statement?

1214

Can we define private and protected modifiers for variables in interfaces?

1126

What is a pointer and does java support pointers?

1056

Post New Core Java Questions

Un-Answered Questions { Core Java }

Where are the card layouts used?

1122

How do you compare two strings lexicographically?

976

What is string buffer?

987

How can you share data between two thread in Java?

978

If try block is successfully executed, Then Is Finally block executed?

1121

Is 0 a real number?

1099

What is java util?

1067

Explain about the main() method in java?

1169

What is identifier give example?

1097

Why singleton pattern is better than creating singleton class with static instance?

1051

What is charat ()?

984

What is the primary benefit of encapsulation?

1151

How arrays are stored in memory in java?

1019

can used Protected Class outside Function.?

1150

What is a module function?

1161

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