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

Accenture NJ mostly ask question on Collection like 1)How to sort Objcts and how treeset sort them 2)Explain mechanism of Hashcode finding in Java 3)Name some of the Sorted collection.

Accenture,

2 8066

could you run the java program without main method?

6 16070

My interview asked what is dynamic variable in java and where we use them.

IBM,

2 7590

How we store procedure in oralce for callable statements in jdbc

2335

what are the new features of Webservices 1.6 than 1.4.From the interface and implementation aspect4.

2183

"we cannot create an object of interface but we can create a variable of it".diacuss the statement with the help of an example.

2 7718

Can I create any Marker Interface? If yes then how can I use it???

4 11658

Give me some example for getting connection from connection pooling in JBoss Server. Is Connection Pool default in Server or we have to create it? Who can create Connection Pool in a Team. How it will be accessed by the developer code?

TCS,

1 4872

how can we load a file of a user in the database table?

ITC Infotech,

3 6063

java.lang.ClassNotFoundException:oracle.jdbc.driver.OracleDr iver? I get this error at run time.I used oracle10G. I set CLASS PATH:C:\oraclexe\app\oracle\product\10.2.0 \server\jdbc\lib\ojdbc14.jar; I write JDBC PROGRAM like import java.sql.*; class Example { public static void main(String args[]) { try { Class.forName ("oracle.jdbc.driver.OracleDriver"); System.out.println("Driver Loaded"); Connection con=DriverManager.getConnection ("jdbc:oracle:thin:@localhost:1521:xe","system","salmas"); System.out.println("Driver Connected"); Statement st=con.createStatement(); ResultSet rs=st.executeQuery("select * from emp"); while(rs.next()) { System.out.println(rs.getInt(1)); System.out.println(rs.getString(2)); System.out.println(rs.getString(3)); } st.close(); con.close(); } catch(Exception e) { System.out.println(e); } finally { System.out.println("it's finally block executed"); } } }

CTS,

6 25121

Possible ways for debugging java ,javascript,jsp and servlet. Can we use System.out.println debugging java.

2 5644

please send code example of inner classes?

2 5516

how team leaders assign work for the team member like through papers,word document

TCS,

1 5869

what is the use of clone method? why user cant overwrite in sub class without its proper defination.

TCS,

2 6292

what is object deep copy and shallow copy and why it is required?

2 8991

Un-Answered Questions { Java J2EE }

What are different ways for servlet authentication?

1109

What are the methods of bean life cycle?

536

What is difference between hashset and hashmap?

1118

what is servlet chaining?

1098

What are some of the best practices for spring framework?

481

Is jpa and hibernate same?

427

How many bits is a word?

1005

Why string is a class?

944

What are controls and their different types in awt?

1088

we use MainFrame and using os390 for operating system with DB2 data base in IRAN and interest programing with java and use webspere for world wide,please help me where i should start?

2422

What is java string pool?

1006

What is an empty string in css?

1053

How does Cookies work in Servlets?

1176

Can you override a final method?

1036

What are inbuilt functions?

994

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