Case and Default

For a switch statement you write switch followed by an expression in parentheses and a list of cases in curly-braces.

Each case consists of a "case label" (case followed by a literal value), an arrow (->), and a body to execute when the value given to the switch matches the value declared in the case.

The final case label can just be the word default. This will match if none of the previous cases did and gives you a place to put "default" behavior.

void sayColor(String fruit) {
    switch (fruit) {
        case "apple" -> {
            IO.println("Red");
        }
        case "grape" -> {
            IO.println("Purple");
        }
        case "orange" -> {
            IO.println("Orange");
        }
        default -> {
            IO.println("Other");
        }
    }
}

void main() {
    sayColor("grape");
}