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 role of void keyword in declaring functions?

Adobe,

994

Define array. Tell me about 2-D array.

Agilent,

999

Give an example of call be reference significance.

Agilent,

986

In case of inheritance what is the execution order of constructor and destructor?

Agilent,

1057

What is the difference between a vector & an array list?

Agilent,

1108

Differentiate between nested and inner class in java.

Akamai Technologies,

954

'A class is a template for an object' explain this statement.

Akamai Technologies,

994

Define Multiprogramming and Multiprocessing in java.

Akamai Technologies,

1066

Explain an algorithm to find depth of a binary tree.

Akamai Technologies,

997

Given a singly linked list, how will you print out its contents in the reverse order? Can you do it with consuming any extra space?

Akamai Technologies,

938

How to declare objects of a class ?

Akamai Technologies,

1018

How will you reverse a singly-link list?

Akamai Technologies,

942

Is linked list a linear or non-linear data structure?

Akamai Technologies,

914

What are the Main functions of Java?

Akamai Technologies,

1053

State the merge-sort principle and its time complexity.

Akamai Technologies,

919

Un-Answered Questions { Java J2EE }

Can you tell me range of byte?

945

How many types of assembly languages are there?

923

What is advice?

362

What is java in simple terms?

950

Name few wcs controller commands used in your application for order subsystem?

781

Will set allow duplicates in java?

926

How do you find the source of a spring?

377

Explain numeric promotion?

1025

What is a ternary operator in java? What is an interface?

945

Realized?

2127

Can two different jms services talk to each other? For instance, if a and b are two different jms providers, can provider a send messages directly to provider b? If not, then can a subscriber to provider a act as a publisher to provider b?

924

Give any two differences between C++ and java.

1087

What is the difference between variable declaration and variable initialization?

981

What is inversion of control (ioc)?

373

What is bean? Where can it be used?

1073

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