Switch expressions allow a switch to produce a value and support arrow labels that avoid accidental fall-through.

String category = switch (status) {
    case NEW -> "pending";
    case PROCESSING -> "active";
    case COMPLETED -> "done";
    case FAILED -> "error";
};

When multiple statements are needed before producing a value, yield can return the result from a block. Exhaustiveness is especially useful with enums and sealed hierarchies.