定义一个类,用来模拟“手机”事物。

属性:品牌、价格、颜色

行为:打电话、发短信

对应到类当中;

    成员变量(属性):

String brand; //品牌

double price; //价格

String color; //颜色

成员方法(行为):

public void call(String who){}打电话
public static void sendMessage(){}发信息

String brand;
    double price;
    String color;

    public void call(String who){
        System.out.println("给" + who + "打电话");
    }

    public static void sendMessage(){
        System.out.println("群发信息");
    }
Phone phone = new Phone();
        System.out.println(phone.brand);
        System.out.println(phone.price);
        System.out.println(phone.color);
        System.out.println("=======");
        phone.brand = "苹果";
        phone.price = 8388.0;
        phone.color = "黑色";
        System.out.println(phone.brand);
        System.out.println(phone.price);
        System.out.println(phone.color);
        System.out.println("=======");

        phone.call("钱伯斯");
        phone.sendMessage();

 

 

posted on 2022-06-29 10:19  淤泥不染  阅读(25)  评论(0编辑  收藏  举报