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 the full form of java

3 9266

what is the diffrence between class and object?

5 6722

import java.io.*; class Demo { public static void main(String args[]) { File f=new File("1234.msg"); String arr[]=f.list(); System.out.println(arr.length); } }

IBM, Ramco,

3 6668

how jvm allocates memory for stack?

HP, Ramco,

1 4497

What is dynamic dispatch in java?

4 8569

how can u cal servlet from java?

7 11191

what is the difference between String and StringBuffer classes?

Infosys,

2 5524

what are the major differences between jdk1.4 and jdk1.5?

Cap Gemini, Crimson Logic, Infosys, TCS, Tenth Planet,

2 14576

how to connect from struts to database through hibernet and where u can modify the class

Polaris,

2559

In treeset we add same object ...what will be the out put

3 5378

why java main method is given as static method?

2 4424

what is Abstract DataType?

1 3506

why operator overloading is removed in java?

1 4150

wat is final...? wat is finally...? wat is finalize....? difference between " final and finally and finalize "...?

2 4521

can we override the main() method in java????

Vimukti Technologies,

3 7272

Un-Answered Questions { Java J2EE }

What is repository model?

455

How can you apply fix pack in websphere 8.5.x?

1007

What are the different types of garbage collectors in java?

1142

What are the two different types of validations that the validator framework supports?

955

What is swing in java with example?

985

What is the difference between spring framework and spring boot? : Spring Boot

468

What is the role of ioc container in spring?

438

Explain xml schema-based aspect implementation ?

457

Two databases there (oracle and db2),so I want 3 datasources for oracle and 2 data sources for db2 so create 3 datasource names for oracle and 2datasourcename for db2 is possible or not?

1058

What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?

1131

If try block is successfully executed, Then Is Finally block executed?

1088

Does java trim remove newline?

1002

What is component mapping in hibernate?

447

What is serialization and deserialization in java programming?

999

Is struts mvc framework?

935

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