Abstraction In Java With Realtime Example Program

Lets understand abstraction concept with java programming examples.

Abstraction in java with realtime example program. Employee contractor and fulltimeemployee example in this example we create an abstract employee class and which contains abstract calculatesalary method. What are some real time examples abstraction in java. Hiding of data is known as data abstractionin object oriented programming language this is implemented automatically while writing the code in the form of class and object. Abstraction is one of the four major concepts behind object oriented programming oop.

Answer lets see the some example of real time abstractions vehicle carbike you can do riding a bike or driving a car without knowledge about hows it works. Atm machine its every day used machine. In the example below the abstract class beverages has a defined method addmilk and an abstract method addingredient. Lets see the simple but complete code examples of using an abstract methods of an interfaces or an abstract class in a java programming.

Here you can do cash withdrawal money transfer check bank balance etc. Abstraction is the concept of exposing only the required essential characteristics and behavior with respect to a context. Let the subclasses extend employee class and implement a calculatesalary method. Both subclasses have common properties to share like the name of the employee and the the amount of money the person.

Oop questions are very common in job interviews so you may expect questions about abstraction on your next java job interview. To give an example of abstraction we will create one superclass called employee and two subclasses contractor and fulltimeemployee. In a real scenario an end user will not be aware of the implementation class. Suppose we have sport as an interface.

Abstract method example in java of an abstract class.