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

howmany types in garbage collection

7 19060

how to monitor the servers

4 10051

howmany connection pool in connection

HCL, TCS,

3 8002

Hi Frieds, I am new to servlet why to use servlet in webapplication. what i know is " use servlet as a controller in mvc and to implemnent business logic . is it correct ? One more thing reason for implementing business logic with servlets , why not jsp.

4 6126

I have one Shopping cart application, i that i have selected some items, while clicking submit button by mistake i have clicked twice or trice, that time items are selected twice or trice. Actually i want only one copy of items but its selected twice or trice. So how can we avoid this problem?

Honeywell,

2 6832

life cycle of an applet?

3 5332

can we use more than one controller in web application

IBM,

3 9936

How Vector class is synchronized,How to build user defined class as synchronized?

2057

What is difference between abstract class & final class

7 27030

Hai all I want to print given array in reverse order Ex: int a[]={1,2,3,4,5};display this array in reverse order.

4 6083

what is the output ? Math.floor(-2.1) a)2 b)-2 c)-3.0 d)0

Accenture,

4 13890

How to find the size of an array a)array.length() b)array.length c)array.size() d)array.size

Accenture,

6 10961

what is the Yield() method used in threads?

Accenture,

4 8561

System.out.println(101/14) what is the output? a)6 b)14 c)7.14 d)0

Accenture,

8 10653

when a servlet sends request for first time it uses the follwing methods a)init b)doget() c)dopost() d)service

Accenture,

4 7507

Un-Answered Questions { Java J2EE }

What does @override mean?

1205

Which java ide is best?

911

Is jdbc faster than odbc?

915

What are Struts2 core components?

1007

Give an example of validates method used to avoid errors.

999

What are the loop holes of struts?

1038

Explain the various Administrator benefits using Web sphere?

949

what is parser and difference between parser and format?

869

What is an http redirector?

997

Which is the class in java?

1043

How do you override a method?

1016

What are the important methods of actionform?

1079

Explain scope or life time of local variables in java?

1027

What is stateless session bean?

1055

mention what are the important component of web-sphere?

941

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