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 the servlet?

1091

What are the differences between the servletconfig interface and the servletcontext interface?

1189

What are the functions of the servlet container?

1628

Can servlet have a constructor ?

1048

Why do we need a constructor in a servlet if we use the init method?

1053

What is the directory structure of a war file?

1170

What is a servlet context object?

1139

How can the session in servlet can be destroyed?

1184

What are the types of protocols supported by httpservlet ?

1224

How do I use cookies to store session state on the client?

970

What are the phases of the servlet life cycle?

1134

What’s the difference between genericservlet and httpservlet?

1115

What’s the difference between forward() and sendredirect() methods?

1017

How do I support both get and post from the same servlet?

1211

What is preinitialization of a servlet?

1027

Un-Answered Questions { Java J2EE }

explain the difference between jdk and jvm?

999

What is the difference between overriding & overloading?

1072

Explain the purpose of garbage collection in Java?

1032

What is xe in oracle jdbc url?

1088

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2349

Is string is a keyword in java?

977

Why is an interface be able to extend more than one interface but a class can’t extend more than one class?

1169

Why do we need data serialization?

994

What are the some useful annotations introduced in struts2?

976

Tell us something about set interface.

998

What is the purpose of return statement?

1064

Can I run seam with jdk 1.4 and earlier?

994

How do you sort an array in java?

996

What are the different class loaders used by jvm?

1099

Is sessionfactory thread safe in hibernate?

358

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