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

Howmany interfaces are used in RMI?

2 5011

How many requests can a server fetch at a time?

1 4303

What are the types of data passing mechanisams under JMS specification?

1 3966

How primary key is implemented in Oracle?

2440

How two threads will communicate with each other?

2 29799

How to deploy Jar, War files in J2EE?

HCL,

2689

How to implement RMI in Java?

TCS,

2870

How to pass parameters in RMI?

2257

What is the need of serialize?

Wipro,

2 4971

In RMI, inorder to sent the stub reference to the client, is we have to load the server object first into the memory or can we directly sent reference to the client?

2094

Is 'synchronised' a modifier?

NIIT,

2 7927

JMS based on what technology?

1 4103

What is RPC?

2 4946

What is the use of Semaphore?

3 6092

What is the form of storage space in java?

2244

Un-Answered Questions { Java J2EE }

What is interceptor in Struts2?

965

How many times the Functional map will execute, if the attributes are 2 independent groups, one occurs 3 times and occurs 2 times? What if the 2 groups 2 dependent?

837

What is @requestmapping in spring boot? : Spring Boot

473

Are annotations inherited?

392

What is difference between ejb 1.1 and ejb 2.0?

1001

How to add calendar in java swing using eclipse?

1188

What happens if we don’t define serial version uid?

1025

What is ejb and its types?

997

What is a lock in jdbc?

949

What is assembly used for?

1016

what are the differences between Generic server and application server in WebSphere environment?

3488

What is difference between overloading and overriding in java?

1023

When an instance goes in detached state in hibernate?

369

What are the life cycle methods of a servlet?

1045

Why hibernate came into existence?

330

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