Logical patterns

LogicalPatterns.cs

public static class LogicalPatterns
{
    public static string ClassifyTemperature(this double temp) => temp switch
    {
        < 0 => "Bitterly cold",
        >= 0 and < 20 => "Chilly",
        >= 20 and < 30 => "Comfortably warm",
        >= 30 and not 100 => "Uncomfortably hot",
        100 => "At the boiling point",
        _ => "Dangerously extreme"
    };
}

Program.cs

internal partial class Program
{
    static void Main(string[] args)
    {
        List<double> temperatures = [15.0, 25.0, 30, 35, 45, 100, 102];
        foreach (var temperature in temperatures)
        {
            Console.WriteLine($"{temperature, -4} => {temperature.ClassifyTemperature()}");
        }    
    }
}