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

Functions, wap to find all the prime palindromic numbers

wap to find all the prime palindromic numbers

Defiine the term object, Defiine the term Object ? Object is a named co...

Defiine the term Object ? Object is a named collection of properties (data, state) & techniques (instructions, behavior). Mainly Objects are key to understanding object-oriente

What is javaserver faces expression language, A easy expression language us...

A easy expression language used by a JavaServer Faces UI component tag attributes to bind the associated component to a bean property or to bind the associated component's value to

Explain the ? operator in java, Explain The ? operator in Java ? The...

Explain The ? operator in Java ? The value of a variable frequent depends on whether a particular boolean expression is or is not true and on nothing else. For example one ge

Explain how many ways businesses monitor their employees, Explain how many ...

Explain how many ways businesses monitor their employees? • Systems are available which monitor almost every key stroke that an employee forms on a computer. • Systems are avai

What are the design goals of java, What are the Design Goals of Java Ma...

What are the Design Goals of Java Massive growth of the Internet and World-Wide Web leads us to a completely new way of looking at development of software which can run on diff

Design a game in java, The game of Kala is played on a rectangular board: ...

The game of Kala is played on a rectangular board: In front of each player are six pits numbered 1 to 6 (called the 'side pits'). To the right of a player's side pits is a

Create an embedded javascript function, Given the following XHTML page: ...

Given the following XHTML page: Create an embedded JavaScript function named getUserInfo that prompts the user with the following two questions after the XHTML page has loa

In which way java says write once run anywhere, Java says write once, run ...

Java says write once, run anywhere . In which ways this isn't quite applicable ?

Illustrate an example to define a student class, Task - Defining a Student ...

Task - Defining a Student class The below illustration will explain how to write a class. We want to write a "Student" class which - should be able to store the below charac

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages