重写 去考试的小明题目

一边思考 一边写 先写person类属性和方法 方法内容先不写 再写方法里 用到的自定义类 进行传值用

根据这样的逻辑 再往下写其他的 自定义类 需要注意的是 打包时功能相同 到一个包中 导入时要精确导入

用到哪个包中的类 就导入哪个包中的类 单词拼写错误 容易出现找不到符号的错误 或者牵涉到传值时 不会有显示输出 贴一张出现bug的图片



重写一遍的感受是 有些细节还需要注意 比如 测试类的对象实例化的格式和顺序 要有层次感 贴代码如下

package com.dayuanit.test;
import com.dayuanit.person.Person;
import com.dayuanit.goschool.*;
import com.dayuanit.paper.Paper;

public class PersonGoTest {
public static void main(String[] args) {
Person person = new Person(15, "小明", "家住天润城");
Bicycle bicycle = new Bicycle(1880, "yellow", "ofo");
School school = new School("花果山水帘洞", "悟空大闹天宫学校");
Paper paper = new Paper(5, 10);

person.goSchool(bicycle, school);
person.goTest(paper);
}

}

Person类代码如下 重写时 其调用其他类的方法时 写的比上次更顺利 没有犹豫 知道传值传的内容是什么

调用很干脆 知道要不要加S.O.P

package com.dayuanit.person;
import com.dayuanit.goschool.*;
import com.dayuanit.paper.Paper;

public class Person {
private String name;
private int age;
private String home;

public Person() {

}

public Person(int age, String name, String home) {
this.name = name;
this.age = age;
this.home = home;
}

public String getName() {
return name;
}

public int getAge() {
return age;
}

public String getHome() {
return home;
}

public void goSchool(Bicycle bicycle, School school) {
bicycle.runBicycle(this);
school.getAddress();
school.getSchoolName();
System.out.println("考试");

}

public void goTest(Paper paper) {
paper.doChoice(this);
paper.doCheck(name);// paper.doCheck(this.name); paper.doCheck(getName());
}

}

this 表示当前对象 在 runBicycle（）;方法中传的值是Person类

package com.dayuanit.goschool;
import com.dayuanit.person.Person;

public class Bicycle {
private String brand;
private int price;
private String color;

public Bicycle() {

}

public Bicycle(int price, String color, String brand) {
this.price = price;
this.color = color;
this.brand = brand;
}

public String getBrand() {
return brand;

}

public String getColor() {
return color;
}

public int getPrice() {
return price;
}

public void runBicycle(Person person) {
System.out.print(person.getAge() + person.getName() + person.getHome() +"骑着一辆" + "价值为" + this.price + color + getBrand());
} // 在不同包中 （private 修饰的类的成员变量） 其他类来调用Person类变量  只能用 get 方法来读取

}

Person类属性私有 呼应上述注释

package com.dayuanit.paper;
import com.dayuanit.person.Person;

public class Paper {
private int choice;
private int check;

public Paper() {

}

public Paper(int choice, int check) {
this.choice = choice;
this.check = check;
}

public void setChoice() {
this.choice = choice;
}

public void setCheck() {
this.check = check;
}

public int getChoice() {
return choice;
}

public int getCheck() {
return check;
}

public void doChoice(Person person) {
for(int i = 0; i < choice; i++) {
System.out.println(person.getName() + "DoChoice" + i);
}
}

public void doCheck(String username) {
for (int i = 0; i < check; i++) {
System.out.println(username + "DoCheck" + i);
}
}

}

运行结果 如下