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

Are foreign destinations handled within foreign jms messages?

1 979

How do I handle request/response using jms?

1 902

Can you use a foreign jms provider to drive an mdb transactionally?

1 923

Which are the benefits of mdb (message driven beans) over standard jms consumers?

1 873

Why did my jdbc code throw a rollback sqlexception?

1 988

Can I enable requests to a jdbc connection pool for a database connection to wait until a connection is available?

1 987

How does a file store compare with a jdbc store?

1 1299

Which of the attributes in the monitoring tab for a jdbc connection pool in the administrative console tell us how many clients are currently waiting for a connection?

1 1001

Which of the recommended practices to be performed in the ejbpassivate() method of a stateful session bean?

1 1171

An instance of stateful session ejb when accessed simultaneously from more than one clients on same vm results in remoteexception or ejbexception. In case the client is a servlet thread, which of the techniques can be used to avoid remoteexception/ejbexception?

1 1056

A client wants to preserve the reference to the ejbhome object of an enterprise bean instance and use it later. Which of the following can be serialized for this purpose?

1 1064

How do I use a less than or greater than on a message selector in ejb-jar.xml?

1 1042

Match the ejb functions given below with the functionality equivalent in sql?

1 1049

For ejb applications with bean-managed transaction demarcations, which of the following is used by the client to get a reference to the usertransaction object for the weblogic server domain?

1 1070

Which is the only method defined in the javax.ejb.handle interface?

1 1174

Un-Answered Questions { Java J2EE }

What is parsing in java?

1030

Differentiate between static and non-static methods in java.

1115

Is minecraft 1.15 out?

1038

What is java string pool?

1076

What is difference between @controller and @restcontroller in spring?

536

What is a constructor overloading in java?

1121

How to sort array in descending order in java?

986

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2658

What do you mean by an interface in java?

1095

How is declarative handling of exceptions done in struts ?

1001

What are the differences between heap and stack memory in java?

1126

What is a classloader in java?

1083

What do you know about validation plugin ?

1024

Explain public static void main(string args[]) in java.

1063

What is lazy class?

480

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