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 user defined exception in Java?

TCS,

1136

When will you define a method as static in Java?

SwanSoft Technologies,

1111

Where we write javascript code in html page?

1108

Why Do I Get A "permission Denied" Error After Downloading The .jnlp Java Launcher For The Vkvm?

Cisco,

1206

Write a program based on Java script program.

Atos Origin,

1206

how to convert Java project into Maven ?

Infosys,

1109

Can Exception handling we can handle multiple catch blocks?

PUCIT,

1091

How to overcome the exception object reference not set to an instance of object?

Wipro,

1211

In a program, initializing an array of 100 KB is throwing an out of memory exception while there is 100 MB of memory available. Why?

MCN Solutions,

1124

What happens when a thrown exception is not handled?

Wipro,

1207

Can a class have a static inner class?

1124

Can classes declared using the abstract keyword cab be instantiated?

MCN Solutions,

1098

Difference between keyword and identifier.

TCS,

1095

What is var keyword ?

Wipro,

1242

What is meant by JVM? Is JVM platform independent or not?

Wipro,

1133

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Un-Answered Questions { Core Java }

Can you explain the private protected field modifier?

1082

Explain about assignment statement?

1071

What do you mean by Function Overloading in java?

1227

What an i/o filter?

1096

what is the purpose of "virtual"?

1134

What is the difference between ArrayList and Vector? which one is better in Java

1195

What is an abstract method in java programming?

1104

Is string a data type in java?

1057

What are the methods used to implement for the key object in the hash map?

1094

What is the string function?

1010

Do I need to import java.lang package any time? Why?

1464

What is a condition in programming?

1055

What is the difference between inner class and nested class?

1154

What is not thread safe?

1043

What is a class instance variable?

1174

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