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 17486

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

2 8347

Why we need to serialize the object

CTS, Geometric Software,

11 39822

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 5205

whatis the diff between ejb and servlet/jsp

TCS,

6 20767

can we have virtual functions in java?

Wipro,

11 47311

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

5 11353

what's diff between struts 1.1 & 1.2

Wipro,

3 26020

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

EdgeSoft,

2335

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

TCS,

9 22170

what is an virtual function

TCS,

2 6046

what is the difference b/w design pattern and architecture

Covansys,

4 9243

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

Covansys,

1 6249

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

3 5733

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

4 13035

Un-Answered Questions { Java J2EE }

What is member in java?

1017

Explain the main difference between entity beans and hibernate.

519

What is data string?

971

Must I place all my class files in the WEB-INF folder and all JSP's outside?

1396

Difference between == and .equals() ?

1000

What is the difference between @bean and @component?

497

What are the classes of java?

963

How can we create a synchronized collection from given collection?

1085

What is setter injection?

452

What is the difference between mvc and spring mvc?

486

Is jdbc secure?

972

how does request processor relates to action mapping?

912

What is the default thread stack size in windows?

1001

What is Hibernate Framework?

382

Is it possible for yielded thread to get chance for its execution again ?

1024

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