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

Calculates whether a plane successfully lands or not, Write a program calle...

Write a program called LandThePlane that calculates whether a plane successfully lands or not.   The program begins by prompting (asking) the user for the following details, in th

What are the advantages of multimedia presentations, What are the advantage...

What are the advantages of multimedia presentations? Write any five. Following are the benefits of multimedia presentations: • Great tool for efficiently communicating ideas

Write a bouncing ball game, Write a bouncing ball video game. The game is s...

Write a bouncing ball video game. The game is similar to the one described and depicted in Figure of the text book. The balls bounces within the screen where the two horizontal wal

What is jar archives, What is JAR archives? JAR archives are ZIP archiv...

What is JAR archives? JAR archives are ZIP archives along with a different extension. They contain a hierarchy of files and directories. In spirit a JAR file can take the place

For in statement, It is a distinct type of loop, used to iterate through th...

It is a distinct type of loop, used to iterate through the properties of an object or the elements of an array. For instance assume the following statement that loops through th

Whatsapp bulk messenger to unlimited numbers, Whatsapp bulk messenger to un...

Whatsapp bulk messenger to unlimited numbers Project Description: Develop a desktop application or script solution to bulk whatsapp sms without getting any block from the wha

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

Explain the term event handler, Explain the term Event Handler? An even...

Explain the term Event Handler? An event handler is a command that calls a function while an event happens, like as the user clicking a button.

Servlet pages from being cached by the browser, How do I prevent the output...

How do I prevent the output of my JSP or Servlet pages from being cached by the browser? Ans) You will require to set the appropriate HTTP header attributes to stop the dynamic

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