What is an abstract class in java, JAVA Programming

Assignment Help:

Question:

(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?


Related Discussions:- What is an abstract class in java

What is actionform, An ActionForm is a JavaBean that extends org.apache.str...

An ActionForm is a JavaBean that extends org.apache.struts.action.ActionForm.  ActionForm handles the session state for web application and the ActionForm object is automatically p

Excel file to responsive css/html page, Excel File to Responsive CSS/HTML p...

Excel File to Responsive CSS/HTML page Project Description: Excel file to be converted into a responsive form for a site. In the excel file you will see where the input field

Data structure, consider the file name cars.text each line in the file cont...

consider the file name cars.text each line in the file contains information about a car ( year,company,manufacture,model name,type) 1-read the file 2-add each car which is represen

Roster entries in chat application, The roster lets you keep track of the a...

The roster lets you keep track of the availability ("presence") of other users. A roster also allows you to organize users into groups such as "Friends" and "Co-workers". Other IM

Elaborate the + operator and its constraints with example, Elaborate the ‘+...

Elaborate the ‘+ ' operator and its constraints along with the help of examples? The + Operator Used on Strings. The + operator could also be used to add string variables or te

Advantage of event-delegation over event-inheritance model, Describe advant...

Describe advantage of the event-delegation model over the earlier event-inheritance model ?

What is operator overloading, What is Operator Overloading? A few objec...

What is Operator Overloading? A few object oriented languages, notably C++, permit you to not only overload techniques but also operators like + or -. This is very menaingful w

What is the core container module, This module is gives the fundamental fun...

This module is gives the fundamental functionality of the spring framework. In this module BeanFactory is the heart of any spring-based application. The whole framework was built o

Write a program to add of doubles in java, Write a program to add of double...

Write a program to add of doubles in java? Doubles are treated much the similar way, but now you obtain to use decimal points in the numbers. This is a same program which does

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd