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Java J2EE Interview Questions
Questions Answers Views Company eMail

Can we define constructor in Servlet class?

Accenture, Yugma,

10 19154

How can I share objects across different sessions?

Accenture,

2 7826

How exception handling is provided in struts?

Accenture,

2 8414

Can we have different controllers in one struts app?

Accenture,

7 16261

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 11322

What code optimizations techniques you follow in general practice?

Accenture, TCS, Wipro,

2 5939

Why should we go for struts framework?

Accenture,

5 12735

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

CSC,

5 7256

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

 1 3191

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 3790

Difference between JVM and JRE?

Amdocs,

3 5945

Diff between Comparator and Comparable?

Aditya Birla,

2 8338

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

IBM,

4 12561

what are the major difference between 6.1 and 7.0?

IBM, Wipro,

9 31526

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

CEBS, IBM,

2 9072

Un-Answered Questions { Java J2EE }

Discuss different types of errors that generally occur while programming.

581

What are the java ide's? Explain

525

Is hibernate sessionfactory thread safe?

176

Difference between multicast and unicast?

543

What is the default execution method in java?

624




What are synchronized methods and synchronized statements in java programming?

573

Is char * a string?

541

What is meant by memory leak?

542

What type of value does sizeof return?

543

What is anagram of a string?

518

Is jwt an oauth?

161

What is the class in swing to change the appearance of the frame in runtime?

564

Define how objects are stored in java?

565

What are the two types of collections in hibernate?

202

Write a program to print fibonacci series up to count 10.

518

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