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

How many types of syncronization?

2 5089

What is race condition ?? (Threading concept) TCS 2 sept10

SparkTG, TCS,

3 7783

what is the difference b/w DispatchAction and LookUpDispatchAction?

Deloitte, iGate, Tech Mahindra,

1 6506

why we write public static void main (String args[]) in core java plz explain briefly??????????????????

HCL,

3 8468

shall we use any name for deployment descriptor of struts instead of struts-config.xml

Polaris,

3 8970

if i know the lenght of collection in hand, should I use Array or Arraylist? justify

iTrust,

1 4440

diffrence b\w println() and printf()

NIIT,

8 23476

if we give input as " hi how are you" then the output should be "uoy woh"...it should skip odd words in the input and should reverse even words from the end of string...can anyone help me to write this program in java

1 4160

What is weblogic unicasting and multicasting?

TCS,

4 20339

can we implement synchronization for handling multiple messages receieving through Mdb on message

IBM,

1 5963

How to pass session values from one servlet container to another servlet container? or how can we get session values of one container in another container?

IBM, Infosys, TCS,

6 21111

What is the use of collections in java? How it is implemented in real time applications?

2 12576

1) what is synchronization? 2)write a program to show synchronization ? 3) what is orm? 4) what is getTemplete method and hw u use it? 5)write a singleton program ? 6) what is IOC concept & explain it? 7) methods of spring? 8)explain spring framework? 9)what are the oops concept? 10)what r the diff types of exception? 11)what is AOP(assepct oriented programing)? 12)jsp life cycle? 13)servlet life cycle? 14)how to u catch ur exception when executing a query in hibernate? 15)write javascript function? 16)write a querry to join two tables? 17)wap to show inheritance and use of interface? 18)explain the project? 19)in spring bean class uses singleton or prototype? 20)Explain prototype?

Cap Gemini,

1 7499

1.) if we use "private" in place of "public" in public static void main()... 2.) if we use "int" in place of "void".... 3.) can we ommit "static" keyword from that statement.... 4.) also can we give the command line arguments type as int type or float,etc.(.i.e (string args[]))

1 6714

can i modify the data which are generated by the servlet

4 6654

Un-Answered Questions { Java J2EE }

What is the byte order of byte buffer?

1017

What do you mean by dao?

406

Explain how does JSP handle run-time exceptions?

1094

How the JSP file will be executed on the Server side?

1137

Which design pattern is implemented by Struts2 interceptors?

999

What is implicit object in java?

1075

How to add the node?

926

Name some useful annotations introduced in Struts2?

970

Do you know how are multi-byte characters used with weblogic jdriver?

1061

Is arraylist dynamic in java?

985

What is function overriding and overloading in java?

1112

What is a retriable command?

848

What do you mean by abstract schema?

1048

What is method overloading in JAVA? Why is it not present in C ?

1101

What are the key methods that are involved in processing of http servlets?

1107

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