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

Core Java Interview Questions

Questions Answers Views Company eMail

Explain JPA in Java.

1 747

Briefly explain the term Spring Framework

1 720

Difference between static methods, static variables, and static classes in Java.

1 832

What is a Java Virtual Machine?

1 719

. Define Copy Constructor in Java

1 752

Can Java be said to be the complete object-oriented programming language

1 734

Define Wrapper Classes in Java.

1 681

Define package in Java.

1 706

. Differentiate between instance and local variables.

1 787

. Explain Java String Pool.

1 728

What happens when the main() isn't declared as static?

1 725

Why is Java a platform independent language?

1 811

Why is the main method static in Java?

1 810

What part of memory - Stack or Heap - is cleaned in the garbage collection process?

1 729

What is the difference between the program and the process?

1 821

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Un-Answered Questions { Core Java }

Why do we need data serialization?

934

What do you meant by active and passive objects?

1027

How do I stop concurrentmodificationexception?

980

What is flush () in java?

967

When can you say a graph to be a tree?

1040

What is boolean example?

905

How many types of variables are there?

1084

java program with complete 4 oops concepts implemented example

3100

What is the difference between static class and normal class?

993

What does exp mean in math?

941

Which types of exceptions are caught at compile time?

986

What is user defined exception in Java?

1029

Where are the card layouts used?

1031

Explain thread in java?

1108

How will you call an Applet using Java Script Function?

977

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