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 are drivers available?

1041

Why do I need to declare the type of a variable in java?

1086

Why does the integer quotient -0/3 yield 0, but the double quotient -0.0/3.0 yields – 0.0?

1054

What happens when I use / and % with a negative numerator?

1049

How do I print a “?

1005

What exactly is a .class file?

1057

What do you mean by platform independence?

1058

How do I get the | symbol on my keyboard?

1086

What is the base class of all classes?

1060

Can I use % with real numbers?

1027

Why is the type for real numbers called double?

966

What is the element?

1057

What is servlet interface?

1237

What is the difference between the include() and forward() methods?

1092

What are some disadvantages of storing session state in cookies?

1025

Un-Answered Questions { Java J2EE }

Why do we need a constructor in a servlet if we use the init method?

1058

What is servlet attributes and their scope?

1069

When do I need “struts.jar” on my classpath?

982

Can a serialized object be transferred via network?

968

Explain where variables are created in memory?

1020

Assume a thread has lock on it, calling sleep() method on that thread will release the lock?

1113

How do you take thread dump in java?

1022

Where can I find seam examples and documentation?

1103

Once I have the Java 2 SDK, Standard Edition, from Sun, what else do I need to connect to a database?

1006

What is the difference between full and partial repositories?

935

Is hibernate faster than jdbc?

336

Which are different kinds of source code?

1119

What do you understand by overloading and overriding in java?

1089

What is the front controller class of spring mvc?

398

how many builtin nodes are there? Categories them?

874

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