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 do you know about the garbage collector?

1111

what is meant wrapper classes?

1199

What is update method called?

1153

What are the advantages of java over C++?

1196

What is the exact difference in between Unicast and Multicast object? Where will it be used?

1054

What is constructor and virtual function? Can we call a virtual function in a constructor?

1135

What is the functionality of the stub?

1022

Why there are some null interface in JAVA? What does it mean? Give some null interface in JAVA?

1082

What is JFC?

1234

What are the files generated after using IDL to java compiler?

1147

What is meant by distributed application? Why are we using that in our application?

946

Tell some latest versions in JAVA related areas?

984

What is the difference between Grid and Gridbaglayout?

1238

Why java is considered as platform independent?

1001

What do you mean by light weight and heavy weight components?

1014

Un-Answered Questions { Java J2EE }

What is the use of web xml in struts2?

905

How does tomcat servlet container work?

1076

What is the difference between get and load method?

459

Difference between html tags and struts specific html tags

898

What is the role of ioc?

415

Where and how can you use a private constructor?

986

What are the advantages in the use of spring for application development?

935

What is pointcut expression?

438

explain autoboxing in java?

1000

What is array class in java?

1060

How do you know if a value is nan?

1057

How many threads does a core java have?

1065

Mention what are the default ports you use to use websphere application sphere?

809

What is the difference between jdbc and jndi?

1003

Why do we need a constructor in a servlet if we use the init method?

1044

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