public class EnumTest6 {
    public enum Num {ONE, TWO, THREE, FOUR;
        public String toString() {
            return name().substring(0,1).toUpperCase() 
                + name().substring(1).toLowerCase();
        }
    }

    public static void main(String[] args) {
        for (Num num : Num.values()) {
            System.out.println("Num is " + num);
        }
    }
}