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 is a singleton factory?

972

Can we clone singleton object?

1084

What is a pattern what is an anti pattern?

989

Why is singleton not thread safe?

1067

What does this () mean in constructor chaining concept?

1142

What are thread safe functions?

967

What is not thread safe?

1001

What is merge in hibernate?

433

What is indexing in hibernate?

444

What is persistence context in hibernate?

413

What is detached entity in hibernate?

354

What is named sql query in hibernate?

416

What are the five steps of orm?

338

What is named native query in hibernate?

379

What is detached object in hibernate?

455

Un-Answered Questions { Java J2EE }

How is abstraction implemented in java ?

1035

What does indexof mean?

1044

Name some OOPS Concepts in Java?

1089

Why do we use hibernate framework?

363

What are the different elements present in JMS?

886

What is java thread dump, how can we get java thread dump of a program?

1014

Explain the difference between resultset and rowset in jdbc

1023

What is a pattern what is an anti pattern?

989

When is the garbage collection used in Java?

1219

What is string [] java?

963

Is it necessary to register controller command in cmdreg table?

1058

What is array in java?

1013

Explain about instanceof operator in java?

1067

How many decimal places is a double?

1004

How do I programmatically get a list of queues or topics? : BEA Weblogic

1013

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