C# Switch case enum
enum Country { Spain, USA, Japan };
static void Main(string[] args)
{
Country country;
Console.WriteLine("Enter the number of country\n 1.Spain \n 2.The USA \n 3.Japan");
string input = Console.ReadLine();
bool sucess = Enum.TryParse<Country>(input, out country);
if (!sucess)
{
Console.WriteLine("entry {0} is not a valid country", input);
return;
}
switch (country)
{
case Country.Spain:
Console.WriteLine("Its in Europe");
break;
case Country.USA:
Console.WriteLine("Its in North America");
break;
case Country.Japan:
Console.WriteLine("Its in Asia");
break;
}
Console.ReadKey();
}
public static RGBColor FromRainbow(Rainbow colorBand) =>
colorBand switch
{
Rainbow.Red => new RGBColor(0xFF, 0x00, 0x00),
Rainbow.Orange => new RGBColor(0xFF, 0x7F, 0x00),
Rainbow.Yellow => new RGBColor(0xFF, 0xFF, 0x00),
Rainbow.Green => new RGBColor(0x00, 0xFF, 0x00),
Rainbow.Blue => new RGBColor(0x00, 0x00, 0xFF),
Rainbow.Indigo => new RGBColor(0x4B, 0x00, 0x82),
Rainbow.Violet => new RGBColor(0x94, 0x00, 0xD3),
_ => throw new ArgumentException(message: "invalid enum value", paramName: nameof(colorBand)),
};
public static RGBColor FromRainbowClassic(Rainbow colorBand)
{
switch (colorBand)
{
case Rainbow.Red:
return new RGBColor(0xFF, 0x00, 0x00);
case Rainbow.Orange:
return new RGBColor(0xFF, 0x7F, 0x00);
case Rainbow.Yellow:
return new RGBColor(0xFF, 0xFF, 0x00);
case Rainbow.Green:
return new RGBColor(0x00, 0xFF, 0x00);
case Rainbow.Blue:
return new RGBColor(0x00, 0x00, 0xFF);
case Rainbow.Indigo:
return new RGBColor(0x4B, 0x00, 0x82);
case Rainbow.Violet:
return new RGBColor(0x94, 0x00, 0xD3);
default:
throw new ArgumentException(message: "invalid enum value", paramName: nameof(colorBand));
};
}