public class Animal {
	//Homework18

	private int age;
	private double weight;
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public double getWeight() {

		return weight;
	}
	public void setWeight(double weight) {
		if(weight <= 0) {
			System.out.println("輸入錯誤");
		}else {
			this.weight = weight;
		};

	}
	public void speak(double weight,int age) {
		System.out.println("體重:"+weight+"kg,年紀:"+age+"歲");
	}

}