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

What is difference between perform() used in struts1.0 and execute() used in 1.1 ?

Infotech,

3 17356

Is struts thread safe?

HCL, Mphasis,

4 25622

How do you know what to give for the "path " under in struts-config.xml ?

1 5930

what is the advantages and diadvantages of Struts?

1 10524

What is Struts Frame Work Architecture(With Diagram) ?

CMC, Wipro,

2 24364

What is Request Dispatcher and what is Request Process?

2 11160

Wat is Difference between Mvc1 architecture and Mvc2 Architecture?

HCL, IBM, Sanyaa Infotech,

21 56495

In Struts Programming which is the controller,which is the model?

10 19856

What are Struts properties?

VI eTrans,

2 13261

what is the difference between HashMap and Hashtable

Value Labs, Virtusa,

17 63276

what is the difference between ArrayList and Vector

KPIT, Sasken, Satyam, Span Infotech, Wipro,

19 49579

what is the difference between @include page and @include file

2 8739

we use MainFrame and using os390 for operating system with DB2 data base in IRAN and interest programing with java and use webspere for world wide,please help me where i should start?

IBM,

2420

String is an immutable object. Then how can the following code be justified. String s1 = ?ABC?; String s1 = s1+?XYZ?; s.o.p(s1); The output is ABCXYZ, which is the value of s1 ?

Flextronics, Keane India Ltd,

6 18184

Instead of writing Home, Remote Interfaces if i directly extends EJBObject to bean class what happens?

Flextronics,

1 5338

Un-Answered Questions { Java J2EE }

How can I debug the java code that I have running in weblogic server? : BEA Weblogic

911

Explain the selection sort algorithm?

1055

What is hibernate criteria api?

435

Is a case study a method or methodology?

897

Which methods cannot be overridden in java?

986

What does exp mean in math?

988

What is the use of statement in jdbc?

927

How many layers are there in hibernate architecture?

358

What are logics in reference to web logic servers?

949

What is the procedure to configure jms security?

878

What does sizeof return?

988

What is enterprise information system?

969

what is mq server?

900

What is element?

939

What is odbc and jdbc drivers?

954

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