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

Explain the architectural relationship between EJB & XML?

Wipro,

1 5605

What is Type-3 Driver and when this driver is used?

Wipro,

3 9610

Can you create an index on sex column where there is M or F?

Wipro,

1 7178

How can you tune SQL statements?

Wipro,

2 6551

How to execute bulk number of queries at once?

Wipro,

3 9833

Is the JDBC-ODBC Bridge multi-threaded?

Wipro,

2 13327

What are null interfaces in JAVA ? and give me some examples?

5 19605

Explain Global variables in Packages?

4 8391

Explain about GridBag Layout?

1 4438

What is HashTable?

4 12694

what is Dictionary? and what purpose it is used for?

3 6490

Have you used any version control ? if so explain about it?

2 6323

How OOPS concept is achieved in Java?

Cognizant, JPMorgan Chase, Xavient,

6 25287

How are Java source code files named?

3 8900

How are Observer and Observable used?

3 7477

Un-Answered Questions { Java J2EE }

What is an empty list in java?

981

What is meant by call by reference?

1009

What causes memory leaks in java?

939

What are the benefits of immutable objects?

1013

Can finally block be used without a catch?

1011

What are the bundled validators?

1016

How can you make sure that your singleton class will always return single instance in multi-threaded environment?

1031

What is life cycle of an interceptor?

1060

Give few difference between constructor and method?

970

What is the static method?

1081

What WebSphere Application Server proprietary extensions provide for J2EEâ„¢ security?

832

What is the default server in spring boot? : Spring Boot

484

What is the main use of generics in java?

993

What variables are stored in stack?

979

How to display names of all components in a Container?

2940

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