//: Adventure.java
// Multiple interfaces
import java.util.*;

interface CanFight {
	void fight();
}

interface CanSwim {
	void swim();
}

interface CanFly {
	void fly();
}

class ActionCharacter {
	public void fight() {};
}

class Hero extends ActionCharacter implements CanFight, CanSwim, CanFly {
	public void swim() {}
	public void fly() {}
}

public class Adventure {
	static void t(CanFight x) { x.fight(); }
	static void u(CanSwim x) { x.swim(); }
	static void v(CanFly x) { x.fly(); }
	static void w(ActionCharacter x) { x.fight(); }
	public static void main(String[] args) {
		Hero i = new Hero();
		t(i);
		u(i);
		v(i);
		w(i);
	}
}