C# program to demonstrate the simple interface

Here, we are going to learn about the simple interface and demonstrate the example of the simple interface in C#.
Submitted by Nidhi, on October 14, 2020

Here, we will demonstrate the working of the interface using a simple example.


The source code to demonstrate the simple interface is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//C# program to demonstrate the simple interface

using System;

interface MyInterface
    //Method Declaration
    void Method1();
    void Method2();
    void Method3();

class Sample : MyInterface
    //Method definitions
    public void Method1()
        Console.WriteLine("Method1() called");
    public void Method2()
        Console.WriteLine("Method2() called");
    public void Method3()
        Console.WriteLine("Method3() called");

    public static void Main(String[] args)
        MyInterface M = new Sample();



Method1() called
Method2() called
Method3() called
Press any key to continue . . .


Here, we created an interface MyInterface that contains the declaration of three methods Method1(), Method2(), and Method3().

Here, we also created a class Sample that implements the interface MyInterface. Here, we defined the methods Method1(), Method2(), and Method3(). The Sample class also contains the Main() method. The Main() method is the entry point for the program. Here, we created the reference of the MyInterface interface and initialized with the object of Sample class and called all three methods, that will print corresponding messages on the console screen.

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