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Java J2EE Interview Questions
Questions Answers Views Company eMail

String is a immutable objects . it means that string does not change........... But it will be chang......... { String s="kapil"; String s1="raj"; String s=s1; then print(.......) The String has been changed .. how it is possible and why its called immutable objects

 7 11856

what is Portal(web based online portal)?

AIG,

2 5332

how session will be expired ?

Satyam,

4 8777

what us Dyna action form?

Aithent Technologies,

4 10004

what is difference between perfom() & excute() ?

IBM,

2 6962

how to handle exceptions in ejb?

HCL,

1 3920

how to handle http request in struts

Polaris,

2 8627

what is use of business objects?

Tech Mahindra,

3 7157

how to use servlets with j2ee ?

Tech Mahindra,

2 6936

what is the difference between ServletContext and ServletConfig

 7 11808

how session will be expired?

CybAge, Infosys,

5 15063

what is meta-Inf?

Polaris,

2 7876

how to handle exceptions in core applications?

CSS,

2 6112

what is default constructor and parameterised constructor with example?

KPIT,

1 3339

what is jms? features of jms

CTS,

2 6673

Un-Answered Questions { Java J2EE }

Explain about map message?

859

What is spring boot in java? : Spring Boot

473

What is an iterator interface in java programming?

959

How many types of methods are there in java?

1005

Which httpsession object is used to view and manipulate information about a session?

1174

How java enabled high performance?

1051

What are the design principles for ejb?

918

Since we can create managed bean by two ways as, we can define the bean name in faces-config.xml file so that page can use that OR we can write annotation on bean class so that it is automatically assign to page but I want to know which one is good programming practice ? And also mention disadvantage of other which should not prefer ... Thanking you...

2281

When you should not use dependency injection?

397

What is jagged array in java?

1083

Is a mapping in hibernate?

363

Why is boolean important?

1063

Is there a case when finally will not execute?

1007

Write a servlet to upload file on server.

1103

How many characters is 16 bytes?

996

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