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Java J2EE Interview Questions
Questions Answers Views Company eMail

Can we define constructor in Servlet class?

Accenture, Yugma,

10 22342

How can I share objects across different sessions?

Accenture,

2 8906

How exception handling is provided in struts?

Accenture,

2 9374

Can we have different controllers in one struts app?

Accenture,

7 18375

Can we have multiple struts-config files in a single web app? If yes why should we have them? Will multiple copies make any impact on performance?

Accenture,

2 12383

What code optimizations techniques you follow in general practice?

Accenture, TCS, Wipro,

2 6994

Why should we go for struts framework?

Accenture,

5 14511

System.out.println("somestring"); It will create any object or not

CSC,

5 8911

________ exception must be either caught or specified in throws class of the method.

 1 3888

Every class extends object but why it is not possible for every object to invoke clone() method. ideally protected methods should be accessible from sub classes. isn't it?

 2 4790

Difference between JVM and JRE?

Amdocs,

3 7185

Diff between Comparator and Comparable?

Aditya Birla,

2 9423

When you are deploying an application, if you got Out Of Memory exception, what you will do

IBM,

4 14413

what are the major difference between 6.1 and 7.0?

IBM, Wipro,

9 34830

.while installing application server in silent mode, if it failed without creating any logs, how do you trouble shoot ?

CEBS, IBM,

2 10560

Un-Answered Questions { Java J2EE }

What is a spring bean?

463

Is the empty set a singleton?

978

How an object is serialized in java?

988

What is string and its types?

1186

What would you do when jvm is consuming 100% cpu & memory on a server?

959

Enlist the changes in EJB 2.1 ?

1031

What is the use of generics? When was it added to the Java development Kit?

1020

What are the features of junit?

1043

What is the purpose of using the java bean?

1051

Does hibernate support polymorphism?

349

What is java util list?

960

Explain what are the ways to avoid resourceexceptions when sending requests for databaseconnections?

985

which class is the wait() method defined in? : Java thread

943

Is jdbc a framework?

902

What is lazy initialization in hibernate?

465

For More Un-Answered { Java J2EE } Questions Click Here