package polymophism;

public interface Action {
    public void eat();

}

public class Man implements Action {
    public void eat() {
        System.out.println("Man eat");
    }
}

public class Woman implements Action {

    public void eat() {
        System.out.println("Woman eat");
    }

}

public class Tester {

    public static void main(String[] args) {
        Woman w = new Woman();
        Man m = new Man();
        Tester tester = new Tester();
        tester.eat(m);
        tester.eat(w);
    }

    private void eat(Action h) {
        h.eat();
    }

}