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 synchronous messaging, Synchronous messaging involves a client that...

Synchronous messaging involves a client that waits for the server to respond to a message. So if one end is down the whole communication will fail.

Control structures, JavaScript supports the normal control structures: ...

JavaScript supports the normal control structures: The conditionals if, if...else, & switch; The iterations for, while, do...while, break, & continue;

Program to create shipping company model, This assignment models a simplifi...

This assignment models a simplified delivery company. It is composed of the following departments:  receiving which contains a list of packages to be delivered, shipping which ship

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 meant through semantic error, What is meant through semantic error?...

What is meant through semantic error? It is an error that a developer encounters while a statement is executed but it was not intended through him (the developer). Such errors ar

Design a payroll system, For your project, you will be designing a payroll ...

For your project, you will be designing a payroll system for a company. The company will use the system to generate payroll reports based on different kinds of employees in the com

Describe the relational operators in java, Describe the relational operator...

Describe the relational operators in java? Java has six relational operators which compare two numbers and return a boolean value. The relational operators are , > , , >=

What is an exceptions, What is an Exceptions ? • What is an exception?...

What is an Exceptions ? • What is an exception? • try-catch • finally • The different kinds of exceptions • Multiple catch clauses • The throws clause • Throwing excepti

Develop a adobe air native extension, Develop a Adobe Air Native Extension ...

Develop a Adobe Air Native Extension Project Description: We are seeking someone that must create an adobe native extension for the subsequent SDK: Develop a Adobe Air Nat

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