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

Difference b/w software platform and java platform, Java platform is a soft...

Java platform is a software-only platform independent, which runs on top of other hardware-based platforms like WINDOWS, UNIX, NT etc.   The Java platform has 2 main com

Write a java adb client, Write a Java ADB client to perform the following- ...

Write a Java ADB client to perform the following- The client will read the contents of the file - invoice.txt. The first line of the file will display the type of the currency. The

#, Consider the following code? What input is needed for x in order for the...

Consider the following code? What input is needed for x in order for the sum variable that is output at the end of the code to be 12 ? (In other words: what do I need to make X be

How to loading images in java, How to Loading Images in JAVA? Polygons,...

How to Loading Images in JAVA? Polygons, ovals, lines and text cover a lot of ground. The residual graphic object you need is an image. Images in Java are bitmapped GIF or JPEG

Program for using arraylists in two ways, In this lab, you will practice us...

In this lab, you will practice using ArrayLists in two ways.  The first is in the problem domain class Question.java (see the UML diagram shown below) which contains data for trivi

Javacard, I want to know if you can help me with a javacard programming pro...

I want to know if you can help me with a javacard programming project

Decode the code, By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the ...

By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area

I want multiplayer backgammon game, I want Multiplayer Backgammon Game P...

I want Multiplayer Backgammon Game Project Description: We want a multiplayer backgammon as short as well as long one. It should be free and on money also. The games fronted

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