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

In method overloading ,if i change the return type to Long instead of INT,is the program execute

HCL,

6 11743

wat is class level lock and object level lock

HCL, Persistent,

3 22225

is it possible to add a object in a HASHMAP

HCL,

6 9781

why we cannot declare static variable inside a static method

4 9816

why using interface interface ?

2042

why use interface? if interface declear a method implement in class. why direct implement method in class

HCL,

1 2803

different between exception and error? explaim check and uncheck exception

4 7417

What is the difference between stateful and stateless session beans?

Tech Mahindra,

2 8184

Difference between interface and abstract class with ex.

Cognizant, Tech Mahindra,

4 9604

what is Thread priority?

Tech Mahindra, Wipro,

4 8065

Distinguish method overloading and overriding

Tech Mahindra,

2 5695

Distinguish method overloading and method overriding

Tech Mahindra,

4 7402

What is thread priority?

Tech Mahindra,

1 5759

how to search the pertical objects in a Collections

iGate,

3 6260

iam writing the contents to a excel through I/O i am putting first statement as WRITE and then READ(from excel) immediately..later user complains that he is not getting the date by using READ ..wat could be the situation

iGate,

3 5536

Un-Answered Questions { Java J2EE }

What’s the difference between struts and turbine? What’s the difference between struts and espresso?

985

What is bitwise complement?

981

What is meant by j2ee?

927

What is jdbc odbc connection?

979

What happens when you add a double value to a string?

985

How do I check in my code whether a maximum limit of database connections have been reached?

990

What is the use of StringTokenizer class?

1065

What is filter chain?

914

What do you understand by Header linked List?

1103

What is the use of a copy constructor?

988

Which is a valid identifier?

1204

What should sessionfactory be placed so that it can be easily accessed?

337

What happens if resultset is not closed?

472

Enlist the enterprise beans types?

1054

Explain the complete struts validator framework.

1015

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