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 understand by annotation in ejb to do the database entity relationships/mappings with examples?

1059

What is jar, war, and ear?

1161

List some new features available in jdbc 4.0?

918

Where jdbc drivermanager class is used?

975

What are the different types of interfaces in the api component?

991

What do you understand by jdbc datasource?

1033

What do you mean by jdbc batch processing and what are the advantages of using jdbc batch processing?

993

What are the measures to connect to the db using jdbc?

1050

What are the basic exceptions in jdbc?

1111

What are the advantages of using preparedstatement over statement?

1023

What are the different types of classes in the api component?

976

What are the advantages of database connection pooling?

924

Differentiate between stored procedure and functions?

1067

What are the advantages of using jdbc datasource?

992

What do you understand by jdbc driver and explain its types?

958

Un-Answered Questions { Java J2EE }

Why call by value prevents parameter value change?

1081

What is javamail?

948

What are the benefits of orm and hibernate?

346

What is the purpose of garbage collection in java?

1111

What is ejb home object?

1039

What is oop principle in java?

1176

Explain about procedural programming language or structured programming language and its features?

1111

When to use doget() and when dopost()?

1129

What is the purpose of @key annotation annotation?

1083

What does adapter class provide?

952

What is number data type in java?

1023

Explain jdk, jre and jvm?

980

What is the difference between multitasking and multithreading in Java

1196

Implementations of set interface?

1022

How many packages are available in jdbc api?

968

For More Un-Answered { Java J2EE } Questions Click Here