java定义数组存储三个手机对象，三个属性，计算3部手机的平均价格

可以使用如下代码定义一个存储三个手机对象的数组，并计算平均价格：

class Phone {
    String brand;
    String model;
    int price;
}

public class Main {
    public static void main(String[] args) {
        Phone[] phones = new Phone[3];
        phones[0] = new Phone();
        phones[0].brand = "Apple";
        phones[0].model = "iPhone 12";
        phones[0].price = 799;

        phones[1] = new Phone();
        phones[1].brand = "Samsung";
        phones[1].model = "Galaxy S21";
        phones[1].price = 699;

        phones[2] = new Phone();
        phones[2].brand = "OnePlus";
        phones[2].model = "8T";
        phones[2].price = 599;

        int total = 0;
        for (Phone phone : phones) {
            total += phone.price;
        }
        double average = (double) total / phones.length;
        System.out.println("The average price of the three phones is: " + average);
    }
}

输出结果：

The average price of the three phones is: 699.0