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 do you mean by web applications?

1227

Why do we have servlet wrapper classes?

1083

Explain the significance of class loaders in bootstrap?

972

Write a program to check string is palindrome without using loop?

Cyient,

1052

What is jvm? How its run?

1105

Define inheritance with reference to java.

1105

When will we prefer to use set and list in java and why?

984

How can we create a synchronized collection from given collection?

1097

How to avoid memory leak in java?

1154

What is the difference between a checked and an unchecked exception?

Cyient,

1014

How dead lock situation occurs in java and how you can identify it?

1012

What are the various access specifiers in java?

1020

Write a java program for binary search?

1081

Explain the difference between call by refrence and call by value?

1043

Why we use multi threading instead of multiprocessing?

1079

Un-Answered Questions { Java J2EE }

Explain the difference between hashmap and hashtable in java?

963

Can bool be null?

1004

What is a client tester?

992

What do you mean by spring java based configuration?

474

How many bytes are a float?

1003

How do I connect to jdbc?

967

Once the destroy() method is called by the container, will the servlet be immediately destroyed? What happens to the tasks(threads) that the servlet might be executing at that time?

1276

What is the actionform?

1051

Why do we use jdbc statements?

974

How can you use a servlet to generate a plain text instead of html?

1152

Why java is considered as platform independent?

1029

What is a method header?

1044

password, is stored in as plain text. What can I do to protect my passwords?

987

Why hibernate is advantageous over entity beans & jdbc?

443

What is the spring data?

411

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