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 when we should make an instance variable private.

1134

What is finalize()?

1201

When should we create our own custom exception classes?

1026

Can we pass a primitive type by reference in java? How

946

When do I need to use reflection feature in java?

1088

Why does java have two ways to create child threads? Which way is better?

1058

Why does java have different data types for integers and floating-point values?

1022

What is byte code and why is it important to java’s use for internet programming?

1139

Is finalize() similar to a destructor?

1028

Explain the difference between protected and default access.

1008

Explain how to convert any java object into byte array.

983

What is finalize()? Is finalize() similar to a destructor?

966

Explain the use of shift operator in java. Can you give some examples?

980

What is difference between add() and addelement() in vector?

1540

Describe how to implement singleton design pattern in struts.

1013

Un-Answered Questions { Java J2EE }

Explain java coding standards for variables ?

1179

What are session methods in hibernate?

407

What is the use of the statement in jdbc?

935

How do you check if two strings are equal in java?

1019

What is lifetime variable?

968

Java.util.regex consists of which classes?

1001

Which type of JDBC driver is the fastest one?

1094

What is id generator in hibernate?

388

What is scalable, portability in the view of J2EE?

2533

How do you check if a string contains only numeric digits?

1125

What do you mean by re-entrant? Can you say that session beans as re-entrant? Can entity beans be specified as re-entrant?

979

What is the difference between the font and fontmetrics classes?

1164

Explain is servlet mapping?

1021

what are mq commands?

956

What is j2ee api?

975

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