horrorshow.java

java的容器应用

//: HorrorShow.java
// Extending an interface with inheritance

interface Monster {
	void menace();
}

interface DangerousMonster extends Monster {
	void destroy();
}

interface Lethal {
	void kill();
}

class DragonZilla implements DangerousMonster {
	public void menace() {}
	public void destroy() {}
}

interface Vampire extends DangerousMonster, Lethal {
	void drinkBlood();
}

class HorrorShow {
	static void u(Monster b) { 
		b.menace(); 
	}
	static void v(DangerousMonster d) {
		d.menace();
		d.destroy();
	}
	public static void main(String[] args) {
		DragonZilla if2 = new DragonZilla();
		u(if2);
		v(if2);
	}
}