如何匹配枚举对象及其关联的常量值？

I created this enum:

我创建了这个枚举:

public enum CoffeeSorts {
    Coffee("Kaffee"), Espresso("Espresso"), Mocca("Mocca"), Cappuccino(
            "Cappuccino"), LatteMacchiato("Latte Macchiato"), DoubleEspresso(
            "doppelter Espresso");

    private final String stringValue;

    private CoffeeSorts(final String s) {
        stringValue = s;
    }

    public String toString() {
        return stringValue;
    }
}
public enum