public class SpeakingEnum {
    public static enum SPEAKING_ENUM {
        SOME_VALUE,
        SOME_OTHER_VALUE;

        public void speak() {
            System.out.println("this=" + this);
        }
    }

    public static void main(String [] args) {
        SPEAKING_ENUM se1 = SPEAKING_ENUM.SOME_VALUE;
        SPEAKING_ENUM se2 = SPEAKING_ENUM.SOME_OTHER_VALUE;
        se1.speak();
        se2.speak();
    }
}