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Java J2EE Interview Questions
Questions Answers Views Company eMail

Define an applet in java?

 839

What is the differences between heap and stack memory in java? Explain

 738

what is anonymous class in java?

 757

What is the difference between the ">>" and " >>>" operators in java?

 731

Explain the difference between abstract classes and interfaces in java?

 840

How we can make copy of a java object?

 867

Explain different states of a thread in java?

 801

What are the java ide's? Explain

 741

what do you mean by classloader?

 741

Explain the difference between an object-oriented programming language and object-based programming language?

 761

What is java and why do we need it? Explain

 803

what is interface in java? Explain

 729

what is the constructor and how many types of constructors are used in java?

 749

What is the purpose of the system class in java?

 767

Why java is a platform independent? Explain

 760

Un-Answered Questions { Java J2EE }

What are the uses of servlet

823

Where is jms used?

620

Define persistent classes.

446

Is java servlet still used?

768

What are the contents on web.xml in struts application ?

731

Why do we use jdbc statements?

702

How create hibernate cfg xml in eclipse?

261

Is ruby built on java?

718

What is the difference between pass by reference and pass by pointer?

709

What is difference between static and singleton class?

278

Must my bean-managed persistence mechanism use the weblogic jts driver? : BEA Weblogic

700

What is meant by polymorphism?

773

Which is bigger float or double java?

744

What does session lock () method do in hibernate?

242

How can we use new custom interfaces to enhance functionality of built-in interfaces of hibernate?

240

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