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C# program to show how we can use abstract class and abstract method

Category > CSHARP || Published on : Saturday, November 14, 2020 || Views: 703 || abstract class abstract method

Here Pawan Kumar will explain how to show how we can use abstract class and abstract method

using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication18
{
    abstract class A
    {
        public virtual void Show()
        {
            Console.WriteLine("Show A");
        }
        public virtual void Fun()
        {
            Console.WriteLine("Fun A");
        }
        public abstract void Call();
    }
    class B : A
    {
        public override void Show()
        {
            Console.WriteLine("Show B");
        }
        public override void Call()
        {
            Console.WriteLine("Call B");
        }
    }
    class Demo
    {
        static void Main(string[] args)
        {
            B b = new B();
           Console.WriteLine("----B----");
            b.Show();
            b.Fun();
            b.Call();
            A a = b;
            Console.WriteLine("----(A=B)----");
            a.Show();
            a.Fun();
            a.Call();
            Console.ReadLine();
        }
    }
}

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