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

Coarse grained soa, Coarse Grained SOA : Services are also could be coa...

Coarse Grained SOA : Services are also could be coarse grained. E.g: You may have a purchase element with individual functions to make a purchase order, add line items, and a

Application to upload dicom files from cd to dropbox, Application or websit...

Application or website to upload DICOM files from CD to Drop box etc Project Description: I need a website code or application to make patients put a cd or DVD to their disk

Services given by an EJB container, 1. Lifecycle Management : Individua...

1. Lifecycle Management : Individual enterprise beans do not accept to explicitly manage process allocation, object activation, thread management, or object destruction. The EJ

Tasks with the classes Currency, In this assignment you work on a set of ta...

In this assignment you work on a set of tasks with the classes Currency, Money and Bank. Money and Currency You have been given a template for the Currency and Money classes (Lab1.

Write output for the given code of for loop, What is the output of the foll...

What is the output of the following code: for (i=0; i { document.write("The number is " + i); document.write(" "); } Output The number is 0 The number is 1 The number i

Create objects of student class by calling default, Create objects of stude...

Create objects of student class by calling default Create objects of student class by calling default, parameterize and copy constructor Call student class different methods on

Create a fifa coins website, Project Description: I want to create simil...

Project Description: I want to create similar site: fifacointrader I want similar site like fifacointrader.com Skills required are HTML, Java, PHP, Website Design, Wordpre

The characteristics of rup? , 1. RUP is relying on a few important principl...

1. RUP is relying on a few important principles and philosophies like planning ahead, knowing where the process is capturing and heading the project in extensible and storable mann

Explain subclasses and polymorphism, Explain Subclasses and Polymorphism ? ...

Explain Subclasses and Polymorphism ? Car and Motorcycle are subclasses of MotorVehicle. If you instantiate a Car or a Motorcycle along with new, you can use in which object a

Describe final arguments, Describe final arguments? At last, you can de...

Describe final arguments? At last, you can declare in which method arguments are final. This means that the techniques will not directly change them. Because all arguments are

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages