using System;

​

public class Program

{

    public static void Main()

    {

        int myNumber = 0;

        switch (myNumber)

        {

            // A switch section can have more than one case label.

            case 0:

            case 1:

            {

                Console.WriteLine("Case 0 or 1");

                break;

            }

​

            // Most switch sections contain a jump statement, such as a break, goto, or return.;

            case 2:

                Console.WriteLine("Case 2");

                break;

            // 7 - 4 in the following line evaluates to 3.

            case 7 - 4:

                Console.WriteLine("Case 3");

                break;

            // If the value of myNumber is not 0, 1, 2, or 3 the

            //default case is executed.*

            default:

                Console.WriteLine("Default case. This is also optional");

                break; // could also throw new Exception() instead

        }

    }

}