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

Why we use static and synchronized in method for single thread model example: public static synchronized add(){}

2 6283

what is the main use of the RequestDispatch object, how we this in realtime project

3 8243

what is main difference b/w abstract class and interface

4 8192

explain why we say stateless beans does not maintain conversation state besides statefull maintains conversation state. give some examples...

HCL,

2 5291

if arraylist size is increased from initial size what is the size of arraylist...suppose initial is 100 , if i add 101 element what is the size...

10 33206

Hi........I need to create a dropdown box using java.....this box should show the values that should be taken from the database...... Thank you....

1 4479

what is the first indian president name

Infosys, Intelligroup,

20 27356

Is it Mandatory to map each pojo class variable with table column in Hibernate? Is there any alternative to skip some of those? Thanks in advance...

Span Systems,

2 6003

hey how can i give words instead of url in orkut?? eg:"click here" instead of a url..when i clik that word it should direct to another page..please help me....

2280

what is the current version of JDBC? and explain its features?

3 8894

What is Visual Source Safe(source control Tool)?

1 4600

Is multiple try block is possible in single java Application......

3 7199

Is System.err.println(""Statement"); is execute the output on console . Example: System.err.println("Hello JAVA");

8 15649

why interfaces are faster than abstract classes?

4 20316

how to call a method in different package?

4 20773

Un-Answered Questions { Java J2EE }

Explain inversion of control, how to implement it.

453

What is the role of multipart resolver and when is it used?

412

How many wrapper classes are there in java?

1013

What are the sections into which a strut configuration file can be divided?

1054

explain about special characters?

978

What is a spring transaction?

400

What is spring ioc and di?

425

Why do we need autoboxing in java?

999

What is the role of a deployer?

1051

Is core java and j2se same?

852

how to create multithreaded program? Explain different ways of using thread? When a thread is created and started, what is its initial state? Or extending thread class or implementing runnable interface. Which is better? : Java thread

1040

What is difference between get and post method?

1086

How to change value in arraylist java?

1185

What does singleton class mean?

985

What WebSphere Application Server proprietary extensions provide for J2EEâ„¢ security?

833

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