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

Java J2EE (14736)
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Java Related Interview Questions

Questions Answers Views Company eMail

Why runnable interface is used in java?

1136

How garbage collection is done in java?

1054

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?

1492

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

979

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

1001

Which of the following classes will have more memory allocated?

1017

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

972

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

1072

Give an example of use of pointers in java class.

1031

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

1066

What is the purpose of static methods and static variables?

1071

What are java packages?

1034

What are the performance implications of interfaces over abstract classes?

1 3666

How can you generate random numbers in java?

1049

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

1240

Un-Answered Questions { Java Related }

What are the sections into which a strut configuration file can be divided?

1053

Can we have multiple catch block for a try block?

1019

Can you send an authentication error from a servlet?

978

Tell me what are the ways in which weblogic servers can run on multiple machines?

1079

Which annotation is used to declare a class as a hibernate bean ?

337

Explain about tiles?

1051

Do we need to manually write Copy Constructor?

1033

What is a marker interface?

1160

What are the different roles a user can have in wcs?

834

What is jms broker in sas?

1102

What is a “stateless” protocol ?

991

How are jdbc statements used?

940

How many types of session beans are available in ejb?

979

Explain the working of service() method of a servlet.

966

Which of the attributes in the monitoring tab for a jdbc connection pool in the administrative console tell us how many clients are currently waiting for a connection?

919

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