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Java J2EE Interview Questions
Questions Answers Views Company eMail

What is the difference between Stream Reader and Stream Writer?

 4 15956

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

 2 7368

Why we need to serialize the object

CTS, Geometric Software,

11 36491

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 4358

whatis the diff between ejb and servlet/jsp

TCS,

6 18414

can we have virtual functions in java?

Wipro,

11 44016

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

 5 9568

what's diff between struts 1.1 & 1.2

Wipro,

3 24875

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

EdgeSoft,

1901

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

TCS,

9 19142

what is an virtual function

TCS,

2 5008

what is the difference b/w design pattern and architecture

Covansys,

4 7835

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

Covansys,

1 5443

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

 3 4591

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

 4 11445

Un-Answered Questions { Java J2EE }

What is t3 protocol?

523

Can we instantiate interface in java?

678

How many times may an objects finalize() method be invoked by the garbage collector?

682

What technique can be employed to compare two strings?

582

Which is the best sorting technique in java?

531




Why HttpServlet class is declared abstract?

656

What is a beanfactorypostprocessor and what is it used for?

164

List the advantages of spring framework?

162

Can we override tostring method in java?

535

How to pass arraylist to stored procedure in java?

552

Is java a web technology?

505

What is 2nd level cache?

146

Can an interface implement another interface?

580

What are modules in spring?

166

What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement?

666

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