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

There are two classes named classa and classb. Both classes are in the same package. Can a private member of classa can be accessed by an object of classb?

1557

What is the base class in java from which all classes are derived?

1041

Can we declare a class as abstract without having any abstract method?

1049

Which of the following classes will have more memory allocated?

1072

Does importing a package imports its sub-packages as well in java?

1026

How objects of a class are created if no constructor is defined in the class?

1130

Give an example of use of pointers in java class.

1087

I want to persist data of objects for later use. What is the best approach to do so?

1117

What is the purpose of static methods and static variables?

1138

What are java packages?

1093

What are the performance implications of interfaces over abstract classes?

1 3760

How can you generate random numbers in java?

1105

When a lot of changes are required in data, which one should be a preference to be used? String or stringbuffer?

1293

How can an exception be thrown manually by a programmer?

1059

How we can execute any code even before main method?

1197

Un-Answered Questions { Java J2EE }

What is meant by a web application

1080

How to implement joins in hibernate?

438

What is a profile in spring boot? : Spring Boot

490

What is the file type?

1078

What is difference between spring and spring boot? : Spring Boot

522

What is substring in java?

1320

What is tcp and udp?

1078

What is jakarta struts framework?

1029

state some of the features present in web sphere?

949

Why swing is better than awt?

1076

In spring bean class uses singleton or prototype?

509

Difference between serialization and deserialization in java?

1220

What is virtual host in websphere application server?

1063

What is the implementation of the bean factory container?

446

List down the steps for the demonstration of ejp persistence mechanism.

1158

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