【java】作业2

定义数组存储3部手机对象。

手机的属性：品牌、价格、颜色。

要求：计算三部手机的平均价格。

class Phone{
    private String brand;
    private double price;
    private String color;

    public Phone(String brand,double price,String color){
        this.brand=brand;
        this.price=price;
        this.color=color;
    }

    public  String getBrand(){
        return brand;
    }

    public  double getPrice(){
        return price;
    }

    public String getColor(){
        return color;
    }

    public void setPrice(){
        if(price<0){
            System.out.println("price cannot be a negative.");
        }else{
            this.price=price;
        }
    }
}

public  class Main {
    public static void main(String[] args) {
        Phone[] phones=new Phone[3];

        phones[0]=new Phone("huawei",12345,"red");
        phones[1]=new Phone("iphone",12321,"white");
        phones[2]=new Phone("sansum",21321,"pink");

        double totalPrice=0;
        for(Phone phone:phones){
            totalPrice+=phone.getPrice();
        }
        double averagePrice=totalPrice/phones.length;

        System.out.println("the average price is:"+averagePrice);
    }
}