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 hash code collision?

1066

What do you mean by order of precedence and associativity?

965

What is the common usage of serialization? What exceptions occur during serialization?

1144

Which way a developer should use for creating thread, i.e. Sub classing thread or implementing runnable.

943

What are the different ways of creating thread?

1028

What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?

1129

What is the use of volatile in java?

1072

Mention the default values of all the elements of an array defined as an instance variable.

1000

What are the steps in the jdbc connection?

1053

Why singleton pattern is better than creating singleton class with static instance?

1009

Write a code to create a trigger to call a stored procedure

998

What is the difference between preparedstatement and statement in java?

1179

What is the difference between synchronized and synchronized block?

1079

What is the use of join method?

1048

What do you understand by weak reference?

1025

Un-Answered Questions { Java J2EE }

Why is java important for internet?

904

What is model spi and what is it used for?

962

what is a thread pool in java and why is it used?

1014

What is a parameter in a function?

1008

What is persist method in hibernate?

401

Can we catch more than one exception in a single catch block?

1095

What is actionmapping?

1094

How are notifications made when a server is added to a cluster?

1059

What is drivermanager in jdbc?

988

Explain the access modifiers for a class, method and variables?

1157

What is spring boot rest api? : Spring Boot

526

What are logics in reference to web logic servers?

965

what is websphere is mq?

872

What is the formula to calculate percentage?

1031

What is hibernate entity?

508

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