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 objects are stored in java?

1056

Can a class have multiple constructors?

1087

Describe different states of a thread.

1021

What are the various access specifiers for java classes?

1077

Can we call the constructor of a class more than once for an object?

1115

Is string a data type in java?

1035

I want to control database connections in my program and want that only one thread should be able to make database connection at a time. How can I implement this logic?

1118

Can we have two methods in a class with the same name?

1064

In the below example, what will be the output?

1053

What is the default access specifier for variables and methods of a class?

1224

What are the two ways of implementing multi-threading in java?

1 1529

What's the difference between comparison done by equals method and == operator?

989

How infinite loop is declared?

1046

What is default switch case? Give example.

1033

What is the difference between double and float variables in java?

1172

Un-Answered Questions { Java J2EE }

Why did my jdbc code throw a rollback sqlexception? : BEA Weblogic

998

What is a instance variable?

1076

WebSphere Application Server stores passwords XOR encoded. I'd like to use something stronger. What can I do?

955

Why sessionfactory is singleton in hibernate?

369

What is hibernate generator class?

447

How much is a java license?

947

Why unicode is important?

952

What do you mean by access modifier?

1062

Why do people says “java is robust”?

1051

What is advice?

414

List different types of user registry supported by websphere portal ?

862

What is the purpose of using break in each case of switch statement?

1037

How many servlet objects are created?

1083

How can default jvm be changed to others?

1029

When was ejb developed?

1050

For More Un-Answered { Java J2EE } Questions Click Here