Java enum

public class EnumDemo {
    enum Numbers {

        ONE(1), TWO(2), TEN(10);

        int i;
        Numbers(int i) {
            this.i = i;
        }

        int getNumber() {
            return i;
        }
    }

    public static void main(String[] args) {
        System.out.println(Numbers.ONE.getNumber());
        System.out.println(Numbers.TWO.getNumber());
        System.out.println(Numbers.TEN.getNumber());
    }
}

Output:

1
2
10