Switch Statements & Expressions

Like Java, C# has both an older statement form and a modern switch expression that produces a value directly:

int day = 3;
string name = day switch {
    1 => "Monday",
    2 => "Tuesday",
    3 => "Wednesday",
    _ => "Unknown", // "_" is the default/discard case
};
Console.WriteLine(name); // Wednesday

The switch expression needs no break at all, and — combined with pattern matching (Level 3) — can match on a value's shape, not just its exact value.