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

Getting code, can i have code on this assignment: The code in the main meth...

can i have code on this assignment: The code in the main method should do the following: 1. Prompt the user for a string input value for the amount in dollars and store it in a va

Saaa, Write a program to find the area under the curve y = f(x) between x =...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b.

SWING, Application using Swing API

Application using Swing API

Develop a 3d rolling alarm clock, Need to develop a 3D rolling alarm clock ...

Need to develop a 3D rolling alarm clock (Android) Project Description: I want an android app as 3D rolling alarm clock It should have sound effect when setting the alarm

What is jsf life cycle and its phases, The series of steps followed by an a...

The series of steps followed by an application is known its life cycle. A JSF application typically follows six steps in its life. 1. Restore view phase 2. Apply request valu

Explain how java allows the constraints on a generic type, Consider the fol...

Consider the following C++ template class. #include using namespace std; template class SortedList { public: SortedList() {size = 0;} void insert(T item); friend ostrea

Describe what is meant by a constructor in java, Question: (a) Describe...

Question: (a) Describe what is meant by a ‘constructor' in Java. Use a simple example to illustrate your answer. (b) Differentiate between a class method and an instance me

Listening for roster and presence changes, The typical use of the roster cl...

The typical use of the roster class is to display a tree view of groups and entries along with the current presence value of each entry. As an example, see the image showing a Rost

#titleArray to store 10messages of type String.., AskWrite an application t...

AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love

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