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

Programming projects, Write a ComputePart class and a ComputerKit class(and...

Write a ComputePart class and a ComputerKit class(and a cliet class to test them) You should include the following methods: a method returning "expensive" if the total of the price

Explain the term naming packages in details, Explain the term Naming Packag...

Explain the term Naming Packages in details? As you saw previously name space conflicts arise if two pieces of code declare the similar name. Java remains track of what belongs

Multitreading, what is multithreading in Java? Explain with example.

what is multithreading in Java? Explain with example.

Difference between static and non-static variable, What is the difference b...

What is the difference between static and non-static variables? A static variable is associated with the class as a whole rather than with specific instances of a class. Non-st

What is the use of textmessage, TextMessage having instance of java.lang.St...

TextMessage having instance of java.lang.String as its payload. Therefore it is very useful for exchanging textual data. It can also be used for exchanging difficult character data

Need android geolocation service app, Need Android GeoLocation Service App ...

Need Android GeoLocation Service App Project Description: I want an android service app that will run on the background. The app has to get the users location (latitude an

Write a javascript program which having two functions, Write a JavaScript p...

Write a JavaScript program which having two functions that are sum and mean. The web page will ask the user to enter five values to be added. After taking input it will compute

Create child processes, Using Fork() and Exec() or Clone(), create four ch...

Using Fork() and Exec() or Clone(), create four child processes. Load the same "Hello" program in each process after creation. This program should behave differently in each pro

Payroll calculator, how to write aprogramm that calculates gross pay, taxe...

how to write aprogramm that calculates gross pay, taxes, and net pay for both hourly and commission employees. It will then display those results to the screen

What can you do with an exception once you''ve caught it, What can you do w...

What can you do with an exception once you've caught it? 1. Fix the difficulty and try again. 2. Do anything else instead. 3. Exit the application along with System.exit() 4

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