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

I dont want to use serialzable in java is there any another concept so plz tell me

WDC,

3 6754

explain the collection in java

WDC,

1 4535

How to implement Singleton

DELL,

6 9956

what is core dump? diff b/w core dump and c dump?

IBM, TCS,

1 8873

what is digital certificate?

HCL, IBM,

3 10018

How does marker interface provides functionality to the implemented class ? or How dose maker interface gets the functionalities as serialization or cloning.

Cap Gemini,

4 8925

What are different Methods and Classes written in a Session Bean

DELL,

1 5971

what is collections in java?

4 6416

how can i kill thread without stop() and destroy()

1 5380

can i call multipule form beans in Action class?

Wipro,

1 5764

Why sleep()is in Thread and wait() in Object class? Why can't I have both in one class or vice versa?

1 6023

This is related to threads. I have a class with synchronized method m1(). Can I create different instances of this class and execute the m1() for different threads?

3 6074

What compiler do not do if we create our own constructor?

HCL,

5 8501

Which method is called when reference variable is passed in system.net?

HCL,

2408

Difference Between getRequest and PostRequest?

HCL, TCS,

8 11892

Un-Answered Questions { Java J2EE }

How to achieve mapping in hibernate?

364

What are the autowiring modes?

429

What is increment in java?

963

Objects or references which of them gets garbage collected?

969

Explain about message selector?

894

How a string is stored in memory?

1022

Is the empty set a singleton?

980

What is maven in spring framework?

475

What is odbc and jdbc?

1007

Define inheritance with reference to java.

1090

What is the difference between super class & sub class?

1195

What is many to one mapping in hibernate?

409

What is step scope in spring batch?

540

Why do we need aop in spring?

456

What is contractor means and methods?

998

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