When should i use abstract classes and interfaces, JAVA Programming

Assignment Help:

When should I use abstract classes and when should I use interfaces?

Use Interface, when:

Design changing often or when various implementations only share method signatures.
When we need some classes to use some methods which we don't want to be included in class.

Use Abstract Class, when:

Several implementations are of the same kind and use common behavior.
Enabling with generalized form of abstraction and leave implementation task with inheriting subclass.
creating planned inheritance hierarchies

Related Discussions:- When should i use abstract classes and interfaces

Program for convert temprature and length, Public class ConversionProgram {...

Public class ConversionProgram { public void start() { String userChoice = askConversionCategory(); while (userChoice.equals("1") || userChoice.equals("2") || Page 2

Methods in java, public class Foothill { public static void main(String[...

public class Foothill { public static void main(String[] args) { Client person_1 = new Client("Bruce Ruprecht", 16000, 10); Writer writer_1 = new Writer("Adam Buf

I want software tool for sequential circuit analysis, I want Software Tool ...

I want Software Tool for Sequential Circuit Analysis The output of the program could be both graphical for the diagram and the rest is console. Skills required: C++ Progra

Need mahjong puzzle game, Need Mahjong puzzle game I want someone to mak...

Need Mahjong puzzle game I want someone to make this game ( Mahjong puzzle game) for me in Android ONLY. If you have high level programming knowledge in Android then please b

Create a new project in eclipse , Task 1 Create a new project in Eclips...

Task 1 Create a new project in Eclipse called Assignment 1. Within this project create a package called task01. 1/ Download the class Date (you must use this class - no

Define the type casting?, Type casting defines treating a variable of one t...

Type casting defines treating a variable of one type as though it is another type. When up casting primitives as given below from left to right, automatic conversion happens. Bu

Sudoku class used in java program, Sudoku Class (Simple Version) The ...

Sudoku Class (Simple Version) The Sudoku class will encapsulate the minimum necessary data and logic to manipulate, print, and set the SudCells , in anticipation of a high

2D arrays, write an application that stores at least five different departm...

write an application that stores at least five different department and supervisor names in a two dimensional array

Describe two reasons driving the termination of processes, Question 1: ...

Question 1: (a) Describe two reasons driving the termination of processes. (b) Discuss the five main steps the OS would implement once it has decided to create a new proc

Describe the life cycle methods of a jsp? , 1. Pre-translated: Before the...

1. Pre-translated: Before the JSP file has been compiled and translated into the Servlet. 2. Translated: The JSP file has been compiled and translated as a Servlet. 3. I

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages