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How can I declare an abstract class with no abstract methods in it in Java?

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Can I declare an abstract class with no abstract methods in it in Java, if yes then how?

posted Sep 2, 2014 by anonymous

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2 Answers

+2 votes

Yes we can have an abstract class without any Abstract Methods as both are independent concepts.

Abstract Class means that you don't allow it to be instantiated on its own.
Abstract means that subclasses have to provide an implementation for that method.

answer Sep 2, 2014 by Salil Agrawal
0 votes

Yes,you used dummy function in abstract class.

answer Sep 2, 2014 by Kumar Abhishek
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+2 votes
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. . .

Per each page request, in the service() method (which eventually will be either doGet(), doPost(), or whatever),
you can manipulate instance variables.

Write a Servlet that counts the total number of visits (how many times it's being visited from all clients). The Servlet should display the following information

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• Client Remote Address:
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The last two can be obtained from the HttpServletRequest, Refer to the Java EE API

then how can re-do these using the Java API for HttpSession.