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 28734

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

Tanla Solutions, Wipro,

7 13690

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

3 9582

what is an ejb object?

Bally Technologies, HCL, Siemens,

5 20224

Driver manager is a class/interface.

Bally Technologies, College School Exams Tests, TCS,

5 19747

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

CSC,

10 28425

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

7 17895

how u do unit testing?

iFlex,

2 6161

How u dubugg ur project?

iFlex,

1 6421

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

4 7878

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

Infosys,

2 11551

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 9687

who was the founder of java

CTS, HCL, ProKarma,

32 56431

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?

2146

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 11284

Un-Answered Questions { Java J2EE }

What are the orm tools?

346

What is spring life cycle?

437

Can an object be null?

967

What are data types in oop?

1034

Difference between GET and POST?

1155

Is spring boot and spring mvc same? : Spring Boot

395

Why we need to integrate struts with spring?

396

How to upload a file to spring mvc?

517

What is struts?

982

how many builtin nodes are there? Categories them?

873

What are the restrictions imposed by a Security Manager on Applets?.

2612

Is math class static in java?

1118

Who wrote struts?

957

What is the differences between struts1 and struts2?

937

What is difference between ++ I and I ++ in java?

967

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