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

Write an algorithm for quick sort?

Virtusa,

1039

Explain access specifiers?

Thomson Reuters, Virtusa,

1179

Explain the concept of proper inheritance?

Thomson Reuters, Virtusa,

1068

When should a function throw an exception?

Thomson Reuters, Virtusa,

1054

When do you call copy constructor?

Tavant Technologies, Virtusa,

979

Difference between operator overloading and function overloading

Tavant Technologies, Virtusa,

1073

Explain about OOPS concepts and fundamentals.

Syntel, Visa,

1048

State the difference between strings and arrays.

Syntel, Visa,

1248

State two differences between C and Java.

Syntel, Visa,

1345

What do you mean by pointer value and address?

Syntel, Visa,

1053

What is a two-pass assembler?

Syntel, Visa,

1054

What is the difference between a loader and a compiler?

Syntel, Visa,

1043

Explain OOPs concept.

Syntel, Visa,

1092

Explain polymorphism citing an example.

Amazon,

1050

What are exceptions

Futures First,

1102

Un-Answered Questions { Java J2EE }

define polymorphism in java

1097

Difference between this() and super() ?

1121

What do you know about the garbate collector?

1023

What is data type modifier?

949

Why are the objects immutable in java?

995

Define immutable object?

1066

what is the difference between preemptive scheduling and time slicing? : Java thread

1040

What are the classes used in struts?

1092

In which order struts framework searches for a message bundle?

945

What is Servlet API used for connecting database?

1106

How do I remove a character from a string in java?

967

what is heap memory?

1101

Where is singleton pattern used?

998

What is an infinite loop? How infinite loop is declared?

1112

Define inheritance with reference to java.

1096

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