Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

What are Inner classes?

4 7266

Is &&= a valid Java operator?

2 13503

A class can be a subclass of itself?

Genesis,

2 10673

Are nested try statements are possible?

2 5290

Is multiple inheritance allowed in Java? Why ?

7 12160

Is 'null' a keyword?

8 10182

Is 'sizeof' a keyword?

7 17964

Does any tag exists in HTML to upload and download files ?

3 8391

Are there any tools available in java to create reports?

5 9498

Explain Connection Pooling?

3 9201

What classes can be used to store arbitrary number of objects ?

1 4191

Can you give names of Container classes?

Ordain Solutions,

2306

What are the names of interfaces that doesn't consists of method/s ?

3 7799

What primitive Java types? Howmany are they and what are their names?

3 5826

What are the names of Component subclasses that support painting?

1 3775

Un-Answered Questions { Java J2EE }

Why jpa is better than hibernate?

410

List primitive java types?

1033

Which type of JDBC driver is the fastest one?

1090

What is array pointers ?

1032

What does spring boot do? : Spring Boot

553

What is spring controller?

401

What is an image buffer?

996

Is it correct to say that due to garbage collection feature in java, a java program never goes out of memory?

1019

Can an interface be defined inside a class?

1061

How to reverse string in java?

1204

Explain load on start-up and its importance?

1139

What is java util function?

1100

What are callback interfaces in hibernate?

369

What is jms queue in weblogic?

891

How do you implement one to one relationship in hibernate with java annotation?

534

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