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

Why transient variables wont participate in serialization?

2 6507

what is ststic with example

Wipro,

1 2145

what is purpose of collections.unmodified() method..?

Accenture,

1 11510

what is purpose of writting public static void main(Strind arg[]) in java..?

ITC Infotech,

4 7705

What is the code inside the public void actionPerformed(ActionEvent ae) override method in Applet [ Condition:- you have one TextField and One Button , you have to enter any color name inside the TextField, when you click on Button Your background will change according to your input color name]

IBM,

2 11082

how to identify duplicate values in arraylist

TCS,

2 5693

Different between Struts and Spring? or Why use Spring, if you are already using Struts?

HP,

3 6432

Does Java pass arguments by value or reference?

HeadStrong,

5 9773

Difference between JRE and JVM?

HeadStrong, Infotech,

3 7740

Will it be called overriding if I do not change the parameters or return type, instead throw a different exception in the method signature.

HeadStrong,

4 8394

How will the struts know which action class to call when you submit a form?

HeadStrong,

6 9731

If I define a method in JSP scriplet <%..%>, where will it go after translation into a servlet?

HeadStrong,

8 21789

Why use a datasource when you can directly specify a connection details? (in a J2EE application)

2 4383

Can we have more than one action servlet?

HP,

7 14660

what is the difference between through and throws?

HCL,

2 7017

Un-Answered Questions { Java J2EE }

Hi frnd can i any one kindly can post for me portlet,hibernate and spring example application and with flow explantion configuration using Jdeveloper.and related links ar tutorials kindly please send me .its urgent for me .thanks in advance...........else can any one send to kondaiah.goddeti@gmail.com

2254

How to sort array in descending order in java?

980

Differentiate between static and non-static methods in java.

1113

i want test pattern of zylog company and some examples also

2850

What is the difference between break and continue statements?

1113

What is the difference between filters and interceptors ?

1291

What is parsing in java?

1022

Can we return resultset in java?

985

What is lazy class?

475

explain different ways of using thread? : Java thread

1073

Is minecraft 1.15 out?

1032

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2410

What is action chaining ?

1154

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124

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657

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