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

I installed a new application, what do I need to do before I can access it from the web server url?

863

We are getting a 'class not found' and developers like to know, if that class is being loaded or not. How can I assist them troubleshoot the issue?

851

How do I minimize the downtime while i’m updating the applications?

874

What is websphere plug-in for web server and where do I need to install the plug-in?

876

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

884

What are java threads?

1128

Which category the java thread do fall in?

998

If a servlet is not properly initialized, what exception may be thrown?

1182

What is new in ServletRequest interface ? (Servlet 2.4)

1009

What is servlet mapping?

1022

What are different Authentication options available in Servlets.

1069

When is the servlet instance created in the life cycle of servlet? What is the importance of configuring a servlet?

1060

Why is it that we can't give relative URL's when using ServletContext.getRequestDispatcher() when we can use the same while calling ServletRequest.getRequestDispatcher()?

1096

List out difference between a JavaBean from a Servlet?

1032

How to find whether a parameter exists in the request object?

1108

Un-Answered Questions { Java J2EE }

What is ejb technology?

898

what are advantages of the mq?

841

State some of the features present in the web sphere?

771

What is the syntax to add a bean in the spring application?

368

What is the difference between war file and jar file?

481

What is 32 bit float?

983

What are construction struts?

917

what is difference between dead letter queue and backout queue in websphere mq?

850

What should be the name of xml file used for validation in struts?

935

Is liferay a cms?

393

What is jms in java?

845

How to perform selection sort in java?

994

How to take was configuration backup without stopping the dmgr?

882

Explain super keyword in java.

1034

What are the three parts of a lambda expression?

1008

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