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Java J2EE Interview Questions
Questions Answers Views Company eMail

what is connection pooling with example?

Amdocs,

3 9851

what is the use of bean managed and container managed with example?

EDS,

1483

if jms system throwing some exception what to do that? means how to handle the exceptions in jms?

4 8512

what is difference between type 4 driver and type 1 driver?

CMC, CTS, IBM, JK Technosoft, Napier Healthcare,

2 12403

what is difference between prepare stetement and callable starement with example?

CMC,

1 4459

what is the use of abstract class and interface with example?

Cycore, DNS, Technoram,

2 13590

what is overloading and overriding with example?

CMC,

2 15360

C and C++ has constructors and distructors, why does Java does not have distructors?

T3 Softwares,

1 3890

How is Garbage collection done in Java?

T3 Softwares,

3 8208

Difference between overloading and Overriding. (also asked in PA Consultancy Group,iflex,Value chain,IBM,CTS,Accenture, Tarang>

Accenture, CTS, Extensio, IBM, iFlex, PA Consulting, Symphony, Tarang,

12 27386

where is .equals() method and how is it different from == operation Is hashing related to these?

iFlex,

4 6352

explain System.out.println()

CTS,

12 16807

Setting Up WebLogic Server for HTTP Tunneling

 1 32339

Which parser is used in Struts to parse the Structconfig.xml file.

iFlex,

21 28145

what is wrapper class and its uses?

 2 5851

Un-Answered Questions { Java J2EE }

Can we have two main methods in a java class?

528

Why spring is a lightweight framework?

154

Explain the hierarchy of java exception classes?

582

What are different data types?

558

What is the difference between executing, executequery, executeupdate in jdbc?

549




What checkbox method allows you to tell if a checkbox is checked?

527

What is the use of beanpostprocessor in spring?

144

What is bean in ejb?

503

Is java important for my computer?

468

What is an example of a conditional statement?

552

What is the purpose of @results annotation?

704

What is the use of 'super' keyword inside a constructor?

549

Explain the persistent classes in hibernate?

138

In what ways can a web logic servers performance be improved upon?

508

Why can't we make a class private in java?

526

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