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

Is singleton class thread safe?

996

How do you define a method?

978

Can inner class have constructor?

1044

What is difference between protected and private?

1078

Can we create object of static class?

1025

What is functional interface in java example?

995

What is supplier in java?

1004

How does singleton class work?

992

Is passing by reference faster?

996

Is singleton set an interval?

967

Is age a discrete variable?

977

Is singleton a bad practice?

1047

What is a function argument in java?

997

What are measurable parameters?

1077

How do you implement singleton class?

986

Un-Answered Questions { Java J2EE }

When should I use a singleton?

1049

Explain the use of spring container.

389

What are the different types of collections in java?

962

What is @controller annotation in spring mvc?

502

What is return in java?

971

When an instance goes in detached state in hibernate?

380

What is instance means in java?

1050

How to display all the prime numbers between 1 and n (n is the number, get the input from user)

983

What is jaxr client?

1003

how to know the total memory occupied by the objects in the ArrayList(Array list may contain duplicate objects)

2339

Why is boolean important?

1063

What are the types of the main implementing classes in the map interfaces? : java collections

1157

What is portlet in spring?

565

What is difference between core java and java ee?

900

Can a list be null in java?

1050

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