Inheritance, implementing inheritance, interface inheritance, JAVA Programming

Assignment Help:

 

Inheritance - is the inclusion of state and behavior of a base class in a derived class so that they are accessible in that derived class. The key benefit of Inheritance is that it gives the formal mechanism for

code reuse. Any shared piece of business logic may be moved from the derived class into the base class as part of refactoring method to improve maintainability of your code by avoiding code duplication. The existing class is called the superclass and the derived class is defined the subclass. Inheritance may also be illustrate as the process whereby one object requires characteristics from one or more other objects the similar way children accepts characteristics from their parents. There are basically two types of inheritances:

 

1. Implementation inheritance: You will extend an application's functionality by reusing functionality in the parent class by extending all or some of the operations already implemented. In Java, you can only add from one superclass. Implementation inheritance promotes reusability but improper use of class inheritance can gives programming nightmares by dividing encapsulation and building future changes a problem. With implementation inheritance, the subclass becomes hardly coupled with the superclass. This will build the design fragile because if you need to change the superclass, you have to know all the details of the subclasses to avoid breaking them. So when using implementation inheritance, make sure that the subclasses relay only on the nature of the superclass, not on the actual implementation.

 

2. Interface inheritance: That is also known as subtyping. Interfaces give a mechanism for specifying a relationship between otherwise unrelated classes, typically by specifying a set of common methods each implementing class must obtain. Interface inheritance provides the design concept of program to interfaces not to implementations. This also reduces implementation dependencies or the coupling between systems. In Java, you will implement any number of interfaces. This is more flexible and reliable than implementation inheritance because it won't restrict you into specific implementations which build subclasses difficult to maintain. So care could be taken not to divide the implementing classes by modifying the interfaces.

 


Related Discussions:- Inheritance, implementing inheritance, interface inheritance

I need a dcs source code and jar, I need a DCS (Source code and JAR) to pro...

I need a DCS (Source code and JAR) to process packets from a cheap chinese GPS TK110, the unit is already communicating with the server but is not parsing. So I need someone with e

Java program that reads in a file of products, Write a Java program called ...

Write a Java program called SalesInfoMiner that reads in a file of products, stored in text format (2 lines per entry). The program must then read in information about past sales t

Explain what is local variable, Explain what is Local Variable ? Declar...

Explain what is Local Variable ? Declaring variables (using the var keyword) inside a function forms them local. They are available only inside the function and hold no meaning

What is jms message, An object that having the data being transferred among...

An object that having the data being transferred among JMS clients.

Difference between stringbuffer and string class, Define the difference be...

Define the difference between StringBuffer and String class?

Java Gui, Does the java applet using swing components, JAVA Programming on ...

Does the java applet using swing components, JAVA Programming on this contain all the source codes for download?

Create java threads, Create a thread in either a C or a Java program and ru...

Create a thread in either a C or a Java program and run it. The thread should read a keyboard value "x" and exit from the code, or it can also use an "ESC" to exit. That is, the t

Program to insert item in tree, public class TreeTest {     public static v...

public class TreeTest {     public static void main(String args[])     {         Tree t = new Tree ();         System.out.println("Populating");         t.insertItem(1);         t

Educational app, CP5307 Assessment Task 3 Coding Project Specification SP22...

CP5307 Assessment Task 3 Coding Project Specification SP22, 2019 Brisbane Description Another type of app found on app stores are “educational games”. There are immersive full-

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