Abstraction
To reduce and remove the complexity of programming
language we use abstraction.
Each real world entity has behavior and
functionality. Behavior should be hidden and functionality should be
exposing.
Example-
1.
Do you know the inner details of the Monitor of your
PC? What happen when you switch ON Monitor? Does this matter to you what is
happening inside the Monitor? No Right, Important thing for you is weather
Monitor is ON or NOT.
2.
When you change the gear of your vehicle are you really
concern about the inner details of your vehicle engine? No but what matter to
you is that Gear must get changed that’s it.
Example of Abstraction: -
using System;
using
System.Collections.Generic;
using System.Linq;
namespace abstarction
{
public abstract class college
{
public abstract void
BTech();
public abstract void MBA();
}
public class Amity : college
{
public override void BTech()
{
Console.WriteLine("Amity BTech Fee 81000/-");
}
public override void MBA()
{
Console.WriteLine("Amity MBA Fee 210000/-");
}
}
public class BhartiBidyapeeth : college
{
public override void BTech()
{
Console.WriteLine("Bharti-Bidyapeeth BTech Fee 41000/-");
}
public override void MBA()
{
Console.WriteLine("Bharti-Bidyapeeth MBA Fee 110000/-");
}
}
class Program
{
static void Main(string[]
args)
{
Amity ObjAmity = new Amity();
ObjAmity.BTech();
ObjAmity.MBA();
BhartiBidyapeeth ObjBhartiBidyapeeth = new BhartiBidyapeeth();
ObjBhartiBidyapeeth .BTech();
ObjBhartiBidyapeeth.MBA();
Console.ReadLine();
}
Output-
Amity BTech Fee 81000/-
Amity MBA Fee 210000/-
Bharti-Bidyapeeth BTech Fee 41000/-
Bharti-Bidyapeeth MBA Fee 110000/-
Explanation :-
Ø
From above example we have make one abstract
class college and two abstract methods
Btech and MBA. Amity and Bharti-Bidyapeeth both are override university course fee.
Ø College
course common for both Amity and Bharti-Bidyapeeth so university method BTech
and MBA is abstract.
Ø Amity and Bharti-Bidyapeeth inherited abstract method so college method must be override here.
