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

Suppose there is an array list [10,5,20,19,15,24].Print them in ascending & descending order in collection framework concept ???

Cognizant,

2 7045

What is Connection Pooling ??? How we set up a particular connection within connection pooling ????

Cognizant,

2 7668

What will happen if we cannot mention "finally" in Java Program ???

PWC,

3 7207

What is default specifier ??? Use of default specifier ???

Cognizant, Syntel,

4 8522

write a program to create an arraylist with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2172

write a program to create an vector with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2118

write a program to create an arraylist and listeterator.and value should be enter through keyboard.

Axcend,

1 3930

write a program to create an vector and listeterator.and value should be enter through keyboard.

Axcend,

1 3846

What will happen if we write code like: try{}catch(exception e)catch(IOException i)

CTS, TCS,

6 11176

How could Java classes direct program messages to the system console, but error messages, say to a file?

2 9270

Is Java Class Threadsafe ????? How to make Java class Thread safe??

Cognizant,

2 7953

why we are using vo,dao and dto design patterns in struts framework

Wipro,

3 14563

why java does not have operator overloading?

2 5832

difference between java ,c#&java,c++

3 5695

is servlet,struts are threadsafe or not.please telme correct answer

Microsoft,

1 4466

Un-Answered Questions { Java J2EE }

Explain the use of shift operator in java. Can you give some examples?

973

Can I use % with real numbers?

1017

Can we override private methods?

1032

What is the difference between object type and object name and what happens when I keep the add referenced object option to ‘off’?

897

Can we assign integer value to char in java?

1027

Does importing a package imports its sub-packages as well in java?

966

What is the difference between development mode and production mode of weblogic server?

1082

Explain servlet events?

1008

What are the different java technologies?

902

Is main a function?

1054

When do we need to use internal iteration? When do we need to use external iteration?

1120

What is protected access modifier?

1003

What is the difference between load() and get() method in hibernate?

460

Why do you use session tracking in httpservlet?

1134

What is defined as false sharing in the context of multithreading?

1044

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