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.

1 357

Briefly explain the term Spring Framework

1 398

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

1 465

What is a Java Virtual Machine?

1 400

. Define Copy Constructor in Java

1 402

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

1 388

Define Wrapper Classes in Java.

1 341

Define package in Java.

1 345

. Differentiate between instance and local variables.

1 378

. Explain Java String Pool.

1 381

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

1 392

Why is Java a platform independent language?

1 417

Why is the main method static in Java?

1 426

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

1 413

What is the difference between the program and the process?

1 421

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Un-Answered Questions { Core Java }

Is multiple inheritance supported by java?

714

What is a dynamic array java?

732

How is Object Oriented Programming different from Procedure Oriented Programming?

830

Can I learn java in 3 months?

773

Define how destructors are defined in java?

787

Can a class have multiple superclasses?

804

What are the types of sockets in java?

770

Can we synchronize static methods in java?

822

What is substring in java?

845

What is a singleton in genetics?

823

What value is a variable of the string type automatically initialized?

848

Why is string builder not thread safe?

852

What is a numeric format?

794

What are facelets templates?

806

What is the method overriding?

838

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