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 BUSINESS DELIGATE PATTERN,DAO,VO,DTO?

BOB Technologies, TCS,

6 28738

without using arthematic operation ,how can you write the logic for adding/substraction/multiplication?

Tanla Solutions, Wipro,

7 13696

How to create an instance of a class if the class has private constructor?

3 9590

what is an ejb object?

Bally Technologies, HCL, Siemens,

5 20247

Driver manager is a class/interface.

Bally Technologies, College School Exams Tests, TCS,

5 19757

How to create an instance of a class without using "new" operator? Plz help me out properly.Thank u.

CSC,

10 28446

give me a java code snippet to connect Microsoft excel through.... I am trying alot... plz help me.

7 17906

how u do unit testing?

iFlex,

2 6163

How u dubugg ur project?

iFlex,

1 6429

what is the difference between?when we write the code in following manner? class One extends httpservlet { } and class One extends genericservlet { }

4 7886

how can u integrate ejb and hibernate? How can u call hibernateDAO methods in session bean?

Infosys,

2 11553

Hi guys.. Well can u tell me that why there is need of "init()" , i mean why can not we initialize the servlet object with the help of constructors? Thank you.

7 9694

who was the founder of java

CTS, HCL, ProKarma,

32 56541

AS a developer will u create a data source in connection pool? If so how will u do that, how to access the object from connection pool using IRAD tool?

2148

when connecting with the database,if database server is down,ho can we handle this exception in struts,how can we send error message to the user?

Wipro,

4 11293

Un-Answered Questions { Java J2EE }

Are arrays classes in java?

1036

What is diagmonagent?

543

Similarity and difference between static block and static method ?

919

What is the difference between the paint() and repaint() methods in java programming?

1187

What is acpnlsload?

854

What's the purpose of static methods and static variables?

1098

Is it ok to add new sessions and subscribers to a queue or topic connection once it has been started? : BEA Weblogic

1136

What are Servlets?

1123

What’s the difference between forward() and sendredirect() methods?

1016

Why are springs useful?

435

Explain the usage of this with constructors?

1028

is it possible to instantiate the math class?

1034

What do you understand by jdbc statements?

1035

What is import javax swing in java?

974

What are the benefits of hibernate over jdbc?

381

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