Answer: enum and notify method : Questions « Object Oriented « SCJP

1. SCJP
2. Object Oriented
3. Questions

A.

public class MainClass {
  enum Animals {
    LION(450), TIGER(450), DOG;
    int weight;

    Animals() {
    }

    Animals(int w) {
      weight = w;
    }
  }

  public static void main(String[] argv) {

      Animals.DOG.notify();

  }
}