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

How many ways to remove the session object in the container

Bosch,

6 18199

How to perform Singleton of the java class object on multi JVM?

2 12595

How to send a request to garbage collector?

4 8264

while working struts in intellij 7.0error unable to initialize tld location cache: zip file is closed is displayed anybdy can answer me immdialy .ungert

Banking,

2556

when i run Frame program, it display output in supparate window.i try to close using "X" it not close.min'-' & max'+' are working.pls what is problem? i run in editplus. folowing program i given. import java.awt.*; class Form1 { Frame f1=new Frame("loginpage"); Label l1=new Label("username"); Label l2=new Label("password"); TextField tf1=new TextField(); TextField tf2=new TextField(); Button b1=new Button("submit"); Form1() { f1.setLayout(new FlowLayout()); f1.add(l1); f1.add(tf1); f1.add(l2); f1.add(tf2); f1.add(b1); f1.setSize(437,440); f1.setVisible(true); //f1.dispose(); } public static void main(String[] args) { Form1 f=new Form1(); } }

4 9208

java.lang.IllegalArgumentException: The path of an ForwardConfig cannot be null while working with struts it displayed pls very ungent

IBM,

3 21935

What happens when database down in weblogic

HCL,

8 24524

What is the use of RequestDispatcher in servlet?

Accenture, CTS, TCS,

18 55831

How can you say HashMap is syncronized?

Arete, IBM,

14 20970

difference between sql exception class and sql warning class

1 6277

How to handle when the database crashes while reading the data from the database?

IBM,

2 6837

can v create a constructor 4 servlet?

Satyam,

7 14237

which pattern is default in scanner package?

Satyam,

2238

what is d difference between deep cloning and shallow cloning in core java?

Satyam,

3 17563

what is the use of private constructor in core java?

OnMobile, Satyam, Yash Technologies,

3 19625

Un-Answered Questions { Java J2EE }

Is alive in java?

958

When a servlet accepts a call from a client, it receives two objects. What are they?

1247

What is an sql dialect?

380

What is stateless bean in spring?

515

Are interceptors and filters different?

1043

What package is math in java?

1005

What is the difference between actual and formal parameters?

946

What is the sla in prd,qa,dev.?

1159

What is create method?

1028

We are seeing so many videos/audios as many web sited. But question is these videos or audios are stored in Databases ( Oracle, Mysql, Sybase,... ) or stored any file directory from there they will give the link for that? Pls explain and give sample code to achieve this one? Thanks, Seenu.

1941

What is the largest long allowed by java?

1067

How do you get the ip address of the client in servlet?

1015

Write all the phases defined in servlet life cycle?

1162

What is the difference between @before and @beforeclass annotation?

1109

What is a spring actuator?

404

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