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

What is the difference(or similarity if there are some) between object and a variable?

ME,

4 6682

what is ACID test for fresh engineers??what is the pattern??

2783

what are literals in java?

2 5226

i need java 1+ experience resume on java developer kindly send me my mail id:srikanthreddy1.marla@gmail.com

1 7483

How many controlers are there in spring? Plz send me ans

HCL,

1 5024

When we r go to abstract class and when we go to Interface? i have confusion this question while in interview plz clarify

HCL, Photon,

3 7109

Can we add JBoss server instance to weblogic cluster?

Accenture, IBM,

1 5799

When should I use abstract classes and when should I use interfaces?

2 5686

Which Taglibraury you used in your project? plz send me ans....which we r using generally

2 5062

What is basic concept of static in java ?

iGate,

1 6477

How to call the m1() method of Base class in below snippet ? class Base { public void m1() { System.out.println("Base m1 "); } public void m2() { System.out.println("Base m1 "); } } ====================== class Derived extends Base { public void m1() { System.out.println("Derived m1"); } public void m3() { System.out.println("Derived m3"); } public static void main(String[] args) { Base ob=new Derived(); ob.m1(); //System.out.println("Hello World!"+ob.m1()); } }

Cap Gemini, TCS,

6 9270

In HashSet duplicates are allowed while adding to the HashSet, but while retreiving the object from HashSet is not shown the duplicate values, WHY ?

Cap Gemini,

2 7267

When to use the Collection Classes(HashSet, LinkedHashSet, TreeSet....etc) in real time scenario ?

Cap Gemini,

1 10048

Explain the OOPS concept in Realtime Scenarion ? Take example as CAR. Please explain indetail ?

Cap Gemini,

3045

What is the difference between static synchronize() metod and synchronize() method?

Polaris,

1 3675

Un-Answered Questions { Java J2EE }

What is stack example?

1022

Explain implementation and how is it different from conversion?

1078

What is the life cycle of a bean in spring?

401

how will you trace the errors through command prompt?

957

What is hibernate and how it works?

355

What are the differences between the constructors and methods?

1112

Which method is used by the applet to recognize the height and width?

1086

What is the difference between struts1 and struts2?

922

Tell me how many ways are there to initialise an integer with a constant.

1108

What is an example of a conditional statement?

1049

How would you achieve transaction management in spring?

426

Name some of the important interfaces of hibernate framework?

348

what is queuemanager in ibm websphere mq ? What does queuemanager do?

907

What are the advantage of swing over awt?

1016

What is fetchtype lazy?

399

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