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 the difference between Stream Reader and Stream Writer?

4 17507

Which class should you use to obtain design information about an object

2 8354

Why we need to serialize the object

CTS, Geometric Software,

11 39883

a US company has filed my H1B visa ,, and i got selected in random number process.I wanna ask Could they ask regarding my languages(java,c++) or there will b just general questions?? And wat kind of questions will they ask in embassy interview??

2 5216

whatis the diff between ejb and servlet/jsp

TCS,

6 20787

can we have virtual functions in java?

Wipro,

11 47362

What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?

5 11382

what's diff between struts 1.1 & 1.2

Wipro,

3 26029

can u explain about design patterns like singleton,builder,factory

EdgeSoft,

2336

why applet doesn't have main? isn't possible a program with out main?

TCS,

9 22203

what is an virtual function

TCS,

2 6066

what is the difference b/w design pattern and architecture

Covansys,

4 9260

wa is connection pooling? how do u create connection pooling?wat is use connection pooling?

Covansys,

1 6257

What is emant by API? is it related to java only or it is common for all OOPS supporting language?

3 5749

What is means by DLL file means ? What is the use of DLL file? What are the contents of DLL file?

4 13043

Un-Answered Questions { Java J2EE }

Mention what is asymmetric clustering in web-sphere?

988

What is codebase?

1008

What is time complexity algorithm?

1055

What is the difference between a method and a procedure?

1066

Which compiler is used in java?

933

what is ststic with example

2051

Is int a class in java?

988

How do I provide user credentials for starting a server?

933

How do you sort a string in java?

968

What is meant by local variable and instance variable?

1021

what is thread in Java ?

1166

Explain about struts?

965

What does it mean that a class or member is final?

998

What is first level cache in hibernate?

368

what are the weakness of symmetric key cryptography and what is the strength of the asymmetric key cryptography?

923

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