©TCP-tryJAVA

interface Animal { public abstract void cry(); }

class Cat implements Animal {
	public void cry() {
		System.out.println("냐옹냐옹!");
	}
}

class Dog implements Animal {
	public void cry() {
		System.out.println("멍멍!");
	}
}

public class prog {
	public static void main(String[] args) {
		Cat c = new Cat();
		Dog d = new Dog();
		
		c.cry();
		d.cry();
	}
}