J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

J2EE Interview Questions

Questions Answers Views Company eMail

what is external varibles in jsp?

Verizon,

1 6762

how many external variables are there in jsp ?

1 6631

when i m calling java for web browser . so browser it's not support. show error in browser: internal error occur. java.lang.NoClassDefFoundError. will you give me solution why it's not starting browser.? is there any consult with .net framework2.0?

2068

what is the purpose and activity of SessionFactory in hibernate?

Cognizant, HCL, Oracle, PiServe Technologies,

13 56884

what is defect. Is it runtime exception or comiletime exception

L&T,

3 7589

How to achieve multiple inheretence in java.I need an example. how we achieve.

2 7042

Can u give me sample code for ServiceImpl and DaoImpl, in j2ee .

1 6239

Hi friends can you give me sample code for Entire j2ee web application with struts and hibernate.I mean code for Dao, DaoImpl, HibernateDao ,HibernateDaoImpl, Dto , service , ServiceImpl , i.e.

1 4064

Hi friends, can u explain Transparent Persistence in hibernate with sample code.

2 7641

In DAO we are writting sql queries , how it is possible with creating and closing database connections.

1983

can someone tell me how does preparedstatement works? its an interface and where is the implementation?

Satyam, TCS,

3 8633

Hi Friends. I want complete technical flow of j2ee project with following technologies. jsp , servlet , Struts , Hibernate , (should follow mvc-2 design pattern) . with DAO ,DTO SERVICE layers .

Infosys,

4850

Possible ways for debugging java ,javascript,jsp and servlet. Can we use System.out.println debugging java.

2 5740

Every field has setter and getter methods.what is happening in this methods.

2 5552

servlet has not any main method in it how does it work by JVM?

7 24466

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Un-Answered Questions { J2EE }

What do you understand by j2ee?

1006

What is a component in java?

951

What is devops in java?

981

What do you mean by j2ee module?

1073

What is application client?

1043

What is j2ee module?

1071

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...

2337

What is front end technology in java?

1075

What is j2ee and j2se?

1001

Why class is used in java?

940

whay java does not support bass by reference

3033

What is java ee server?

926

I am newbie in J2EE & looking for strong basic behind each concept as, Why do we use private access specifier before each variable of type property bcoz ultimately to access it outside the class we use public method as getter & setter ? If we use getter & setter to access it outside the class so better we make variable as public so that it is easily available outside of the class... Please guide me why do we use as private ????

6272

What are the advantages of object-relational mapping (orm)?

919

what is meant by proxy server

4950

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