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 is OOP's Terms with explanation?

1187

What is better - 'bit-shift a value' or 'multiply by 2'?

DELL,

1191

How would you use Bubble Sort to sort the number of elements?

Genpact,

1006

What is close method? How it's different from Finalize & Dispose?

InfoAxon Technologies,

1065

Can a private method be declared as static?

Global Logic,

1022

What do you understand by access specifiers in Java?

Genpact,

1014

Implement two stacks using a single array.

Global Logic,

1062

What is the use of 'super' keyword inside a constructor?

Flextronics, Thomson Reuters, Virtusa,

972

What is the method to declare member of a class static?

HCL,

1009

What is Mutex (Mutual Exclusion Object) ?

Ciena,

1152

Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?

Genpact,

1241

What do you mean by JVM?

Ericsson,

1080

When does a class need a virtual destructor?

Flextronics,

1015

How is tree Mirroring implemented?

Fidelity,

1079

How can u increase the heap size in the memory?

Infosys,

1020

Un-Answered Questions { Java J2EE }

What is java command?

1083

How many java languages are there?

977

What is the relationship difference the canvas class and the graphics class?

1060

What is the relationship between an event-listener interface and an event-adapter class?

1127

What command will you use to recursively search for a particular string across multiple files in your currentdirectory?

981

FOR EXAMPLE WE R HAVING TWO LIST ELEMENTS ..BOTH LISTS CONTAINS ID,NAME,PLACE ..I NEED TO COMPARE BOTH IDS IN TWO LISTS,IF ID'S R SAME MEANS WE HAVE ADD THE DETAILS(LIKE NAME,PLACE) TO MAP...HOW IS POSSIBLE ?CAN ANY ONE SUGGEST?

3476

What is the difference between load() and get() method?

418

Why hibernate is preferred over jdbc?

479

What is the advantage of functional interface in java 8?

995

What is step scope in spring batch?

539

What are the system services of ejb container?

1078

Who created the swing?

929

What is method with example?

1116

What is the difference between RMI registry and OS Agent?

1144

What is a super method?

978

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