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

Are constructors methods?

1076

What is visibility mode?

1020

Why static functions are used?

1156

What is treeset and treemap in java?

1147

How do you detect memory leaks?

1119

What is the use of static class?

1291

How do you clear a method in java?

1057

How many types of voids are there?

1038

Is main a function?

1136

How do you sort a list in java?

1086

Which list is sorted in java?

1096

What is linkedlist in java?

1056

Can we override final method?

1077

Does set allows null in java?

1028

Is set ordered in java?

1042

Un-Answered Questions { Java J2EE }

Is empty set an element of empty set?

1179

What does system.gc() and runtime.gc() methods do?

1101

What is jms server?

916

Which non-unicode letter characters may be used as the first character of an identifier?

1059

Once I have the Java 2 SDK, Standard Edition, from Sun, what else do I need to connect to a database?

1062

If a java process keeps going down due to an out of memory error, what all java options would you start with that would tell you what was in memory at the time of the out of memory error?

1114

What is bootup process?

1052

What is beanfactory and applicationcontext in spring?

489

How to check hibernate version in spring boot?

733

Does java return by reference?

1080

What is called module?

1034

What is constructor and virtual function? Can we call a virtual function in a constructor?

1198

What is instance example?

1016

What is jdbc dialect?

983

What is the point of polymorphism java?

1075

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