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.

1 829

Briefly explain the term Spring Framework

1 799

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

1 926

What is a Java Virtual Machine?

1 780

. Define Copy Constructor in Java

1 820

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

1 816

Define Wrapper Classes in Java.

1 751

Define package in Java.

1 794

. Differentiate between instance and local variables.

1 867

. Explain Java String Pool.

1 809

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

1 800

Why is Java a platform independent language?

1 888

Why is the main method static in Java?

1 891

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

1 802

What is the difference between the program and the process?

1 891

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Un-Answered Questions { Core Java }

What are the major advantages of internal iteration over external iteration?

1043

What does java stand for?

1115

Can we use string in the switch case?

1040

Explain the meaning of java applet.

1065

Can It is possible to synchronize the constructor of a Java Class?

1115

Can we increase array size dynamically in java?

944

What is unicode with example?

1202

What is strings in java?

1039

What is outofmemoryerror in java?

1022

Write a code to show a static variable?

1088

What are the different ways of implementing thread? Which one is more advantageous?

977

How garbage collection is done in java?

1046

What is meant by 'Class access modifiers'?

1042

Why do we use predicate in java?

1047

What is import java util arraylist?

1179

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