- 根据如下需求,完成代码(按照标准格式写),然后在测试类中测试。
- 需求一:
- 手机类Phone
- 属性:品牌brand,价格price
- 行为:打电话call,发短信sendMessage,玩游戏,playGame
- 需求二:
- 人类Person
- 属性:姓名name,年龄age,性别gender
- 行为:学习study,睡觉sleep
- 需求三:
- 动物类Animal
- 属性:姓名name,年龄age
- 行为:吃饭eat
- 需求四:
- 狗类Dog
- 属性:姓名name,年龄age
- 行为:吃饭eat,看家lookHome
- 需求五:
- 猫类Cat
- 属性:姓名name,年龄age
- 行为:吃饭eat,抓老鼠catchMouse
- 需求六:
- 学生类Student
- 属性:语文成绩chinese,数学成绩math,英语成绩english
- 行为:求总成绩的方法getSum()
- 包含private class作为形参 匿名引用
- 构造方法:无参和有参
复制代码
- class Temp1 {
- public static void main (String[] args) {
- Person li = new Person(); //创建对象 李雷 25 男
- li.name = "李雷"; //属性
- li.age = 25;
- li.gender = "男";
-
- System.out.println ("从前有一个人,他的名字叫:" + li.name +"。他" + li.age + "岁了。他是" + li.gender +"的。");
- System.out.print ("他会:"); //功能
- li.study();
- System.out.print ("和");
- li.sleep();
- System.out.println ();
- Student li1 = new Student(); //成绩类
- li1.chinese = 110;
- li1.match = 135;
- li1.english = 120;
-
- System.out.println ("他的语文成绩:" + li1.chinese +",他的数学成绩:" + li1.match + ",他的英语成绩:" + li1.english);
- System.out.print ("他的总分是:" + li1.getSum() );
- System.out.println ();
- System.out.println (); //狗类 引用数据类型当作形式参数
- dog(new Dog());
- System.out.println();
- Cat li2 = new Cat(); //猫类 匿名对象
- li2.name = "加菲";
- li2.age = 4;
- System.out.println("他还有一直猫,猫的名字叫" + li2.name + "。它今年" + li2.age + "岁了。");
- System.out.println ("它会");
- new Cat().eat();
- System.out.println ("和");
- new Cat().catchMouse();
- Animal li3 = new Animal (); //动物类
- li3.name = "狗剩";
- li3.age = 20;
- System.out.println ();
- System.out.println ("综上,我发现,好像所有小动物的主人都会给他们起个名字,比如说是" + li3.name + "。小动物的寿命一般不会超过" + li3.age + "岁。");
- System.out.println ("他们最萌的动作就是:");
- li3.eat();
- Phone li4 = new Phone(); // 手机类,private 封装
- li4.setBrand("大米牌");
- li4.setPrice (8888);
- System.out.println ();
- System.out.println ("顺便说一下,他的还有一部手机,手机是" + li4.getBrand() + "。虽然是山寨的,但是价格却是" + li4.getPrice() + "元!" );
- System.out.println ("但是,只能");
- li4.call();
- System.out.println ("和");
- li4.sendMessage();
- System.out.println (); //无参的构造方法
- Phone li5 = new Phone();
- li5.show();
- System.out.println ("哈哈,这个是无参的,下面是有参的。");
- System.out.println (); //有参的构造方法
- Phone li6 = new Phone("iPhone 6S", 5888);
- li6.show();
- System.out.println (); //有参的构造方法,改名,不同的输出方法
- Phone li7 = new Phone("iPhone 6S", 5888);
- li7.setBrand("锤子");
- System.out.println ("说错了,应该是,品牌:" + li7.getBrand() + ",价格是:" + li7.getPrice() + "元!");
- }
- public static void dog (Dog d) {
-
- d.name = "小白";
- d.age = 1;
- d.print();
- }
- }
- /* 需求一:
- 手机类Phone
- 属性:品牌brand,价格price
- 行为:打电话call,发短信sendMessage,玩游戏,playGame */
- class Phone {
- private String brand;
- private int price;
- public Phone () {} //构造方法,无参方式
- public Phone (String brand, int price) { //构造方法,有参方法
- this.brand = brand;
- this.price = price;
- }
- public void show () {
- System.out.println ("梦想的手机品牌有:" + this.brand + ",价格是:" + this.price + "元");
- }
- public void setBrand (String brand) { //brand private封装 用this
- this.brand = brand;
- }
- public String getBrand () {
- return brand;
- }
- public void setPrice (int price) { //private private封装 用this
- this.price = price;
- }
- public int getPrice () {
- return price;
-
- }
- public void call () {
- System.out.println ("打电话");
- }
- public void sendMessage () {
- System.out.println ("发短信");
- }
- public void palyGame () {
- System.out.println ("玩儿游戏");
- }
- }
- /* 需求二:
- 人类Person
- 属性:姓名name,年龄age,性别gender
- 行为:学习study,睡觉sleep */
- class Person {
- String name;
- int age;
- String gender;
-
- public void study () {
- System.out.println ("学习");
- }
- public void sleep () {
- System.out.println ("睡觉");
- }
- }
- /*需求三:
- 动物类Animal
- 属性:姓名name,年龄age
- 行为:吃饭eat */
- class Animal {
- String name;
- int age;
- public void eat () {
- System.out.println ("吃饭");
- }
- }
- /*需求四:
- 狗类Dog
- 属性:姓名name,年龄age
- 行为:吃饭eat,看家lookHome */
- class Dog {
- String name;
- int age;
- public String eat () {
- //System.out.println ("吃饭");
- String i = "吃饭";
- return i;
- }
- public String lookHome () {
- String i = "看家";
- return i;
- }
- public void print () {
- System.out.println ("他有一条狗,他的狗叫:" + name + "。今年" + age + "岁了。");
- System.out.println ("它会" + eat() + "和" + lookHome() + "。");
- }
- }
- /*需求五:
- 猫类Cat
- 属性:姓名name,年龄age
- 行为:吃饭eat,抓老鼠catchMouse */
- class Cat {
- String name;
- int age;
- public void eat () {
- System.out.println ("吃饭");
- }
- public void catchMouse () {
- System.out.println ("捉老鼠");
- }
- }
- /*需求六:
- 学生类Student
- 属性:语文成绩chinese,数学成绩math,英语成绩english
- 行为:求总成绩的方法getSum() */
- class Student {
- int chinese;
- int match;
- int english;
- public int getSum () {
- int sum = chinese + match + english;
- return sum;
- }
- }
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