Phone类package com.itheima_03;/* * 手机类 */public class Phone {    String brand;    int price;    String color;        public void call(String name) {        System.out.println("给"+name+"打电话");    }        public void sendMessage() {        System.out.println("群发短信");    }}

Phone的测试类：package com.itheima_03;/* * 手机类的测试类 */public class PhoneDemo3 {    public static void main(String[] args) {        Phone p = new Phone();        p.brand = "OPPO";        p.price = 2999;        p.color = "白色";        System.out.println(p.brand+"---"+p.price+"---"+p.color);                Phone p2 = p;        p2.brand = "魅族";        p2.price = 1999;        p2.color = "蓝色";        System.out.println(p.brand+"---"+p.price+"---"+p.color);        System.out.println(p2.brand+"---"+p2.price+"---"+p2.color);    }}

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