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 garbage collection in Java, and how can it be used ?

Accenture, HCL, Infosys, Sara, SITS, TCS, Wipro,

32 94813

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28375

Differentiate constructor and a method and how are it be used?

Wipro,

7 29050

What is an abstract class?

DBS, Wipro,

8 27493

How can final class be used?

Accenture, Wipro,

5 27263

By what default value is an object reference declared as an instance variable?

Wipro,

1 26399

Java support what type of parameter passing ?

Wipro,

7 19914

Explain the term serialization?

Wipro,

10 30987

Is there is any error if you have multiple main methods in the same class?

Infosys, Wipro,

10 33138

What is Overriding and how can it be used?

Consagous, Wipro,

7 32973

How is serialization used generally ?

3 21197

How are Swing and AWT be differentiated?

Wipro,

3 22180

Explain pass by reference and pass by value?

IBM, Wipro,

8 32178

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25254

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 73565

Un-Answered Questions { Java J2EE }

Which sorting algorithm is best in java?

943

What are alternatives to java serialization?

1061

Why should the implementation of any swing callback (like a listener) execute quickly?

964

What is advice in spring?

360

What advantage do java's layout managers provide over traditional windowing systems?

919

Is java gui dead?

852

Describe the ear, war, and jar.

866

What is meant by class loader? How many types are there? When will we use them?

919

What is hbm in hibernate?

311

What is metadata autoproxying?

404

What is Enum in Java?

1219

hi friends, i have done my BE(CSE)at 2011 then i have joined one company before they asked me 50k so i paid but now they telling no project here so we r going to close like that so now i need any job i have good knowledge in core java and j2ee(jsp,servlet,jdbc) so if u know any job pl help me

2171

What's the servlet interface?

1041

What is servlet in spring?

379

How do you check if an arraylist is not empty?

1060

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