What is an abstract class in java, JAVA Programming


(a) Java does not support multiple inheritance but does provide the concept of ‘interface'. Explain how interfaces can help a programmer to implement multiple inheritance in their programs. Explain with suitable Java examples.

(b) What is an abstract class in Java? Describe the importance of implementing these classes in programs. Illustrate with an example of your own.

(c) Show the Java approach to event processing by explaining how event handling works in Java. Use an example to support your answer.

(d) Describe what is a ‘Listener' in Java using an appropriate example?

Posted Date: 11/8/2013 5:34:01 AM | Location : United States

Related Discussions:- What is an abstract class in java, Assignment Help, Ask Question on What is an abstract class in java, Get Answer, Expert's Help, What is an abstract class in java Discussions

Write discussion on What is an abstract class in java
Your posts are moderated
Related Questions

The Application context module makes spring a framework. This module extends the concept of BeanFactory, giving support for internationalization (I18N) messages, application lifecy

can we develop paint user can draw his charcters and images in swing

I send you these files in order to make clear image about my task that I want you to design for me an application for PC that used to control robot arm via micro controller PIC18.

The Naming class gives methods for storing and obtaining references to remote objects in the remote object registry.

Define : Authorization is the process by which a program calculates whether a given identity is permitted to access a source such as an application component or a file. Now that y

Problem Definition A new Met Office web application will allow users of their web site to view rainfall statistics for months and years in the UK. The application allows the m

AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love

The method should printout line numbers from 1 to howmany in the previous format -ONLY WHEN is divisble by 3 but is should not oupt more then 3 numbers on the line. input 1 outpu

A:Java is a computer language. There are some of the reasons which describe:   1. Built-in support for multi-threading, memory management (automatic garbage collection), and