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,

1076

When will you define a method as static in Java?

SwanSoft Technologies,

1057

Where we write javascript code in html page?

1052

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

Cisco,

1144

Write a program based on Java script program.

Atos Origin,

1131

how to convert Java project into Maven ?

Infosys,

1051

Can Exception handling we can handle multiple catch blocks?

PUCIT,

1040

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

Wipro,

1148

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,

1050

What happens when a thrown exception is not handled?

Wipro,

1111

Can a class have a static inner class?

1077

Can classes declared using the abstract keyword cab be instantiated?

MCN Solutions,

1043

Difference between keyword and identifier.

TCS,

1028

What is var keyword ?

Wipro,

1179

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

Wipro,

1075

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Un-Answered Questions { Core Java }

Can you make a constructor final?

1038

What is pass by value?

945

Is java 11 paid version?

985

What is the scope or life time of instance variables?

1112

what is deadlock? : Java thread

1007

What does the “static” keyword mean?

1101

What is Hierarchy of exception?

1081

Difference between start() and run() method of thread class?

1069

What is data string?

966

Is the empty set a singleton?

975

What is the function of log?

988

Can keyword be used as identifier?

957

What are the java ide’s?

1025

What is the original name of java?

1100

Is java code slower than native code?

1057

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