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

In corba, which of the files generated by the idltojava compiler must be compiled before running the server application? : BEA Weblogic

1030

What is bea weblogic? : BEA Weblogic

1022

Why did my jdbc code throw a rollback sqlexception? : BEA Weblogic

998

What is the no_acknowledge acknowledge mode used for? : BEA Weblogic

1015

I tried to run two of the applets in the examples directory of the distribution? : BEA Weblogic

940

While packaging the web application defaultwebapp for deployment into the weblogic server, the home and remote interfaces of the enterprise beans used by the servlets should reside in which directory? : BEA Weblogic

1056

What can I do when I get java.lang.outofmemoryerror because producers are faster than consumers? : BEA Weblogic

989

What causes an ociw32.dll error? : BEA Weblogic

1173

How do an rmi-iiop application and an existing corba object interoperate? : BEA Weblogic

1003

How many messages are sent across the network for processing topic messages? : BEA Weblogic

1011

Why does for update in oracle 8 cause an ora-01002 error? : BEA Weblogic

994

How do I handle request/response using jms? : BEA Weblogic

1066

How do I connect to an sql server instance that is running on a machine with multiple instances of sql server 2000? : BEA Weblogic

1041

How do I limit the number of oracle database connections generated by weblogic server? : BEA Weblogic

986

How does concurrency work for message-driven beans? : BEA Weblogic

994

Un-Answered Questions { Java J2EE }

Can an interface have a constructor?

992

What is the use of @ejb annotation?

990

What class.forname does, while loading the drivers?

1002

Explain JMS and its Component?

919

What is the difference between error and an exception?

1178

Why do we use spring?

395

Why do we need data structure in java?

1090

what is the difference between object filter and event filter?

938

How can we retrieve data from the resultset?

1001

How do I create a rest api spring boot? : Spring Boot

477

What are the design considerations while making a choice between using interface and abstract class?

1112

how to handle exceptions in ejb?

2324

Is synchronized thread safe?

430

What is the JDBC?

1102

What is DDP?

964

For More Un-Answered { Java J2EE } Questions Click Here