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

How many types of deployment descriptors are available? What are they?

862

What is the portletcontext interface?

876

Differences between a portlet and servlet?

899

Explain portal architecture.

854

What are authoring and presentation templates?

968

What is model spi and what is it used for?

946

What is the java persistence api (jpa)?

429

What does hibernate simplify?

363

Difference between get() vs load() method in hibernate?

355

What is called lazy fetching from hibernate?

523

What is the use of hibernate session merge() call?

351

What is the need for hibernating tools when orm tools can be used?

366

What is a session in hibernate?

411

What is lazy loading in hibernate and how is it done?

525

What is the difference between sorted collection and ordered collection, which one is better?

338

Un-Answered Questions { Java J2EE }

Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?

1117

Do we need a validation map for input/output from the map to check its syntax?

912

Can we create object of inner class in java?

944

What is general entity?

952

What do you mean by action errors and what are the results they force?

1049

What is isa relationship?

1048

What's the advantages using servlets than using cgi?

1000

How can we find listineing ports in a machine?

1027

What are different ways for servlet authentication?

1106

What is initialization parameter?

1059

What is spring dto class?

416

What are the kinds of polymorphism?

1090

Distance between two points in java

Which interceptor is responsible for mapping request parameters to action class Java Bean properties?

1060

What do you understand by auto wiring and name the different modes of it?

405

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