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 connection pooling with example?

Amdocs,

3 11055

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

EDS,

1978

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

4 10318

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

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

2 13460

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

CMC,

1 5338

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

Cycore, DNS, Technoram,

2 14620

what is overloading and overriding with example?

CMC,

2 16507

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

T3 Softwares,

1 4686

How is Garbage collection done in Java?

T3 Softwares,

3 9478

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 31497

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

iFlex,

4 7998

explain System.out.println()

CTS,

12 20059

Setting Up WebLogic Server for HTTP Tunneling

1 33958

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

iFlex,

21 33571

what is wrapper class and its uses?

2 7021

Un-Answered Questions { Java J2EE }

Can we have multiple classes in a single file?

983

What do you understand by abstract classes?

1077

What is the purpose of @before?

994

What is the difference between update and merge?

417

What is a percentage sign called?

1125

What are the life cycle methods of interceptor?

974

What is detached entity in hibernate?

344

Explain features of interfaces in java?

994

What is the use of swing in java?

1060

What is @configuration annotation in spring?

487

Is it possible to define a method in java class but provide it’s implementation in the code of another language like c?

1032

What are the disadvantages of spring framework?

412

Should database connections be singleton?

965

What should be the name of xml file used for validation in struts?

938

What is use of dao design pattern?

406

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