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 6878

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

1 2907

what are literals in java?

2 5384

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

1 7626

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

HCL,

1 5121

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 7279

Can we add JBoss server instance to weblogic cluster?

Accenture, IBM,

1 5911

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

2 5846

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

2 5204

What is basic concept of static in java ?

iGate,

1 6585

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 9545

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 7436

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

Cap Gemini,

1 10216

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

Cap Gemini,

1 3115

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

Polaris,

1 3794

Un-Answered Questions { Java J2EE }

Find Best Job Vacancies across the world on Jooble!

123

explain different ways of using thread? : Java thread

1073

What are the contents on web.xml in struts application ?

1056

What is a classloader in java?

1080

Write a program to find the whether a number is an Armstrong number or not?

1093

Write a program to print count of empty strings in java 8?

1077

What is the difference between break and continue statements?

1113

what are the different modes of archival? Explain each mode in two lines each?

990

Realized?

2248

What is the difference between equals() and == in java?

1028

What do you know about validation plugin ?

1019

What is java string pool?

1072

What is action chaining ?

1154

How to create a base64 decoder in java8?

1123

How can you inject java collection in spring?

499

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