Switch expressions return a value with yield

An arrow switch is an expression, so it can be assigned. Use yield when a branch needs a block of statements before producing its result.

Code

for (int month : List.of(1, 4, 12)) {
    String quarter = switch (month) {
        case 1, 2, 3 -> "Q1";
        case 4, 5, 6 -> "Q2";
        case 7, 8, 9 -> "Q3";
        default -> {
            String q = "Q4";
            yield q + " (year end)";
        }
    };
    System.out.println("month " + month + " -> " + quarter);
}

Output

month 1 -> Q1
month 4 -> Q2
month 12 -> Q4 (year end)

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Published 2026-07-30