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

Is void a data type?

956

What is difference between float and double?

962

What is byte data type?

999

What is difference between char array and string?

1115

Can we write class inside a class in java?

982

What is data type in computer?

961

What is ascii format?

993

What is an array length?

904

What is data type example?

960

What is character in data type?

960

What does || mean in vectors?

931

What does || mean in code?

1039

Can a final variable be manipulated in java?

981

What 5 doubled?

986

What causes memory leak in java?

936

Un-Answered Questions { Java J2EE }

Why to use nested classes in java? (Or) what is the purpose of nested class in java?

1071

Is state maintained by a Stateless bean?

1042

What are the different types of locking in JDBC?

1011

What is the use of StringTokenizer class?

1068

Why am I getting an ora-01000: maximum open cursors exceeded error, even though I closed all resultset, statement, and connection objects? : BEA Weblogic

1024

What are the differences between execute, executequery, and executeupdate?

955

What is hibernate proxy?

413

Define prototype?

1060

While packaging the web application defaultwebapp for deployment into the weblogic server, the home and remote interfaces of the enterprise beans used by the servlets should reside in which directory? : BEA Weblogic

1041

How many bits is size_t?

995

What is dependency injection in ejb?

1044

explain local datetime api in java8?

1011

Does java map allow duplicates?

895

What can be the reasons of server hang?

1020

How do you annotate a text?

417

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