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 to connect to a specific enterprise bean?

2 4827

What are types in SessionBeans?

1 4914

waht is the main diference b/w servelts and JSP ?

CAP, HCL,

8 19376

what is the Diff. between Access Specifiers and Access Modifiers?

BMC, Cyber Shot, Infosys, VTS, Wipro,

39 124327

What is the difference between add() and addElement() method in Vector Class ?

TCS,

2 19526

Can we add two byte variables and assign the result to a byte variable ? b=b1+b2 where b,b1,b2 are byte types

TCS,

4 22713

How can we find size of the object ?

CTS, RazorSight,

5 15036

What is the difference between AWT and Swing ?

TCS,

1 6723

Can we use the one instance of Statment to execute more than one query ?

TCS,

2 9264

Howmany classes that package java.applet.* contains?

TCS,

1 7314

How to reduce flicking in animation?

TCS,

3 7314

How to print nodes of a Binary tree?

TCS,

1 6513

What is I/O Filter?

TCS, WAX,

2 14158

How to initialize an Applet ?

TCS,

9 25190

Can you call a private data from an inner class?

6 10125

Un-Answered Questions { Java J2EE }

How many bean scopes are supported by spring?

499

Does the database server have to be running Java or have Java support in order for my remote JDBC client app to access the database?

974

What is meant by method overriding?

1111

Explain the performance tuning in jms?

978

What is the difference between sorted collection and ordered collection, which one is better?

338

How can I determine the isolation levels supported by my DBMS?

991

What can I do when I get java.lang.outofmemoryerror because producers are faster than consumers? : BEA Weblogic

975

Can we create a constructor in abstract class?

981

What is auto wiring?

421

What is a treeset class?

1008

design an lru cache in java?

1004

Why do we need hql?

352

What is a local class in java?

1040

Which interface does java.util.hashtable implement?

1193

Why do we use cache in hibernate?

379

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