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 94618

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28310

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

Wipro,

7 29000

What is an abstract class?

DBS, Wipro,

8 27428

How can final class be used?

Accenture, Wipro,

5 27224

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

Wipro,

1 26374

Java support what type of parameter passing ?

Wipro,

7 19857

Explain the term serialization?

Wipro,

10 30909

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

Infosys, Wipro,

10 33043

What is Overriding and how can it be used?

Consagous, Wipro,

7 32922

How is serialization used generally ?

3 21170

How are Swing and AWT be differentiated?

Wipro,

3 22146

Explain pass by reference and pass by value?

IBM, Wipro,

8 32108

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25217

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 73389

Un-Answered Questions { Java J2EE }

What is meant by domain?

1104

Explain about doubly linked list

971

What id url?

838

What is the type of lambda expression?

948

What do you mean by dao in spring?

364

What is the purpose of static keyword in java?

903

Does @override do anything?

385

Can we send e-mail messages using JMS?

875

What is the difference between the getrequestdispatcher(string path) method of javax.servlet.servletrequest interface and javax.servlet.servletcontext interface?

987

Explain about arraylist?

1019

What are aggregate functions explain with examples?

998

What is hibernate caching? Explain hibernate first level cache?

370

What is the difference between load() and get() method?

389

What are the exceptions thrown by servlets? Why?

1095

Explain java coding standards for classes or java coding conventions for classes?

1059

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