Java J2EE Interview Questions
Questions Answers Views Company eMail

How can I connect mysql or oracle with java?

534

What is the reason why we need a jdbcrowset like the wrapper around resultset?

524

What is the return type of execute, executequery and executeupdate?

625

Why “no suitable driver” error occurs?

595

What are database warnings in jdbc and how can we handle database warnings in jdbc?

591

What do you mean by ‘hot deployment’ ?

564

How does ejb invocation take place?

553

What do you mean by ejbdoclet?

607

What changes have been made in ejb 2.0 specifications?

594

What are versions of ejb?

580

How can a session bean be configured for transactions of bean-managed?

557

Can more than a single table be mapped in cmp?

548

When was ejb developed?

554

Are entity beans allowed to create() methods?

560

What do you mean enterprise javabeans (ejb) container?

581


Un-Answered Questions { Java J2EE }

How to make object serializable in java?

526


Difference between object and reference?

656


What does compareto () do in java?

542


what are the differences between Generic server and application server in WebSphere environment?

2947


Why array is used in java?

487






In how many formats we can deploy an application in wls??

527


What is a framework in it?

135


How do listeners work?

484


Which is better setter or constructor injection?

138


What is JDBC RowSet? What are different types of RowSet?

528


What is the meaning of find and replace?

507


What is unmodifiable list in java?

509


What is the purpose of xmlaccess configuration file export.xml & exportrelease.xml?

478


How many types of parsers are there?

518


Can we declare an interface as final?

550