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 to implement singletun design patteren in struts?

HCL,

5 13416

Is Cegonsoft Pvt.Ltd. a good Institute?

4 6941

GoldMansachs Interview process....

Goldman Sachs,

1 11607

HI ALL, How to Overcome "OutOfMemoryException"? when I am compiling source having more than 1000 LOC throwing this exception. Can any one give correct answer to my question? thx

5 6867

Hi all, I am dng a mini project on FileSplitter application which splits the GBs of logfile into Smaller chunks(mbs) depending on the split size." How to handle GBs file? I am getting OutOfMemoryException, when I input such GB sized file. Thx

2132

The class "Class" is belongs to which package?? a) java.lang b)java.lang.reflect c)java.util d)None

4 9359

which of tha following is not a thread safe class? a) ArrayList b)Vector c)HashTable d)None

17 20134

Explain the role played by Java Virtual Machine in Java Programming?

1 6179

Explain role of constructor in a java application?

5 14219

Where can i get Latest SUN Certification Dumps and what are the Sun Certification Codes that are available, Im new to JAVA, so please gimme info as i need to write J2EE - Core Java Certification

1861

This is my code i have a doubt class ab implements a,b { public void add() { System.out.println("Hi") } } interface a { public void add(); } interface b { public void add(); } in this code i have two interface implemented in the class has same method.just i want to know which method of interface implemented in the class. interface a or interface b? confused me .

3 5082

IN java collections we have both interfaces and classes. instead of using interfaces why we can't use classes only like that why we can't use interfaces only. why we need two things interface and class.

Accenture, CTS,

6 10597

Differences between jdk 1.4 and 1.5

SoftSol, TCS, Wipro,

6 17574

which method does it invokes automatically when we click link in the webpage a)put b)get c)head d)post

7 9144

what happens when we add the objects morethan the size limit to a hashmap

1 4283

Un-Answered Questions { Java J2EE }

Are registers volatile?

936

Why method overriding is used?

1095

What is j2ee called now?

977

Differece between class and generic class?

1039

Why spring is lightweight in java?

423

What is mnemonic code?

1015

what is the major difference between linkedlist and arraylist in java?

1214

What is meant by weaving?

432

What is entry set in java?

1132

Explain scope or life time of local variables in java?

1027

Write a function to find out longest palindrome in a given string?

1054

What are computer functions?

945

Which is faster call by value or call by reference?

934

What is servlet and how it works?

970

What does += mean coding?

933

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