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 28740

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

Tanla Solutions, Wipro,

7 13697

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

3 9592

what is an ejb object?

Bally Technologies, HCL, Siemens,

5 20249

Driver manager is a class/interface.

Bally Technologies, College School Exams Tests, TCS,

5 19762

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

CSC,

10 28453

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

7 17911

how u do unit testing?

iFlex,

2 6164

How u dubugg ur project?

iFlex,

1 6431

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

4 7888

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

Infosys,

2 11554

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 9697

who was the founder of java

CTS, HCL, ProKarma,

32 56559

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?

2150

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 11295

Un-Answered Questions { Java J2EE }

In type3 client software which machine you have install?

877

Is java ee a framework?

989

What is flushing in hibernate?

400

What is difference between pojo and dto?

491

How can os authentication be connected with weblogic jdriver for oracle and connection pools?

998

What do you understand by a Static Variable?

1215

what is an execution group?

948

What is difference in between java class and bean?

1092

Does google use spring framework?

414

What is the important part of JMS applications?

870

What is an example of a keyword?

1108

Why are there no global variables in java?

1044

Can we nested try statements in java?

1103

What is the purpose of the serializedsystemini.dat file?

1066

Explain connector architecture.

973

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