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

Differentiate between beanfactory and applicationcontext in spring.

396

How do you call the multiple lifecycle mechanisms configured for the same bean?

431

When you should not use dependency injection?

404

What are the features of the new spring build system in use now days?

388

What is weaving in spring?

455

How can you use spring to resolve collaborators for your bean? Also state the advantages of auto wiring?

449

When to use dependency injections?

479

What type of transaction management spring support?

565

Give a way to check that all result sets have bin accessed and update counts are generated by execute method.

971

Discuss the procedure of retrieving warnings?

995

Name the types of jdbc drivers.

924

What are the different types of statements? How we can you use preparedstatement.

974

I have the choice of manipulating database data using a byte[] or a java.sql.blob. Which has best performance?

944

Why do we need a jdbcrowset like wrapper around resultset?

1267

What are types of jdbc drivers?

1004

Un-Answered Questions { Java J2EE }

What is difference between hashset and hashmap in java?

1029

What is super?

1186

When super keyword is used?

1028

What is spring mvc framework?

427

Mention different types of messages available in JMS API?

830

How can you make sure that your singleton class will always return single instance in multi-threaded environment?

1040

Describe dispatcherservlet.

532

What is java lang string?

1014

Which Java and java.sql data types map to my specific database types?

1087

What is phantom read and which isolation level prevents it?

1127

What is an ejb context?

1013

What is the purpose of tostring() method in java?

1177

What are classes for spring jdbc api?

569

What provisions does WebSphere Application Server provide to prevent denial of service attacks?

884

I want my class to be developed in such a way that no other class (even derived class) can create its objects. How can I do so?

999

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