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Java Related Interview Questions
Questions Answers Views Company eMail

What are the observer and observable classes?

 1 447

Explain JPA in Java.

 1 302

Briefly explain the term Spring Framework

 1 336

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

 1 388

What is a Java Virtual Machine?

 1 354

. Define Copy Constructor in Java

 1 343

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

 1 332

Define Wrapper Classes in Java.

 1 290

Define package in Java.

 1 294

. Differentiate between instance and local variables.

 1 316

. Explain Java String Pool.

 1 317

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

 1 332

Why is Java a platform independent language?

 1 361

Why is the main method static in Java?

 1 355

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

 1 371

Un-Answered Questions { Java Related }

What is an error in java?

835

How will you explain save() and saveorupdate() methods in hibernate?

302

Explain notifyall() method of object class ?

852

what is method reference in java 8?

751

What is callback methods?

689

Can we integrate struts with spring?

778

How can you generate random numbers in java?

762

What is Java Persistence API (JPA)?

378

What is native query in hibernate?

411

How do I open java console?

652

What is jobrepository in spring batch?

247

What is the instance of an object?

836

How do you achieve singleton?

718

You're given a Boolean 2D matrix, can you find the number of islands?

822

What is jndi? How is it related to jms?

616

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