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

Directive Include and Action Include how both are working in JSP, what is the difference between both?In which suituation we have to choose these elements?

AZTEC,

4 10441

which method is used to know the status of the Thread?

Honeywell,

9 15459

is this possible to create an array of 0 length? if so how? if not so why? coz we have an array in main() likw this "static void main(String [] s) then what it signifies?

Hexaware, TCS,

3 18384

what exactly happens when we execute "Class.forname("Driver class name");"?Explain indetail

Accenture, HP, IBM, Infosys, SAP Labs, SAS, Sasken, Trigent, Wipro,

10 27192

Is it possible to write static method in abstract class? justyfy your answer?

Hexaware,

5 15558

what is the difference between HashMap And HashTable?

Hexaware,

5 13337

what is the difference between abstract class and Interface?where we can use it in realtime projects?

Agile Software, Cognizant, IBM, Innodata, Logica CMG, Mitosis, Nagarro, Value Chain,

23 71246

what are the root classes of all classes?

4 11291

How many bits are used to represent unicodde,ASCII,UTF-16 and UTF-8 characters?

2 6141

what is ForwardAction and IncludeAction in struts?

Mind Tree, Satyam,

3 36334

which class to use when concatenating strings in a loop.

IBM,

3 8916

how to create a search field in struts.with code

Infosys, Satyam,

3 13032

what are depricated methods ?

Satyam,

5 11304

What is multiple inheritance & can we implement it in java?

Satyam,

6 15208

what is the difference between cd & dvd ?

Lovely Professional University, Satyam, Sibylsys,

30 56800

Un-Answered Questions { Java J2EE }

What are the 8 primitive data types in java?

1019

How can I use the JDBC API to access a desktop database like Microsoft Access over the network?

1017

What is the declaration statement?

946

What should be done for auto generating primary key id in a table ?

973

Can long be null in java?

1013

Can we use static class instead of singleton?

1051

What is n+1 select problem in hibernate?

430

why do we need a digital signature?

1105

Is there any sort function in java?

1046

Why is java multithreaded?

986

What is the final keyword?

985

explain the attribute channel in web sphere mq?

984

How does hibernate update work?

508

How many instances of servlet usually run in a struts application ?

1012

How do listeners work?

1044

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