答答租车系统的组作业

一直在Imooc上自学java，在第二季的末尾有一个作业，我完成了，分享一下让我的博客也能有点生机。。。。。。

下面的一共有8个类（有点多），实现的是一个控制台的租车功能

/*ZaiHuo 是货车类的父类*/
public class ZaiHuo {

    char id;
    String name;
    int liang;
    int money;

    public String xiaoHuoche() {
        return null;

    }
 
    public String daHuoche() {
        return null;

    }
}

/*ZaiKe是客车的父类*/
public class ZaiKe {

    char id;
    String name;
    int people;
    int money;

    public String Xiaoqiche() {
        return null;

    }

    public String Dakeche() {
        return null;

    }
}

/*抽象类ZaiKeAndRen是皮卡这一特殊类（既可以载人也可以载货）的父类，为什么一定用抽象类呢？其实是为了复习抽象类*/
public abstract class ZaiKeAndRen {

    char id;
    String name;
    int liang;
    int people;
    int money;

    public abstract String yunhuoAndzairen();

}

/*huoChe 继承了 ZaiHuo类 ，在main方法中会新建ZaiHuo类的对象,主要是数据模型需要*/
public class huoChe extends ZaiHuo {

    char id;
    String name;
    int liang;
    int money;

    public huoChe(char newId, String newName, int newLiang, int newMenoy) { 
        // TODO Auto-generated constructor stub
        this.id = newId;
        this.name = newName;
        this.liang = newLiang;
        this.money = newMenoy;
    }

    public String xiaoHuoche() {
        return  id + "  " + name + "    "+"       载货量:" + liang + "   租金:" + money
                + "每天";

    }


    public huoChe(String newName, char newId, int newLiang, int newMenoy) {
        // TODO Auto-generated constructor stub
        this.id = newId;
        this.name = newName;
        this.liang = newLiang;
        this.money = newMenoy;
    }
//为啥会有两个 有参数的构造方法呢？因为是 货车 有 大货车和小货车 ，分开，节省代码（个人观点）
    public String daHuoche() {
        return  id + "  " + name +"        "+ "      载货量:" + liang + "  租金:" + money
                + "每天";
    }

}

 

/* keChe 类继承了Zaike类 在main 方法新建它的对象，主要也是数据模型需要*/
public class keChe extends ZaiKe {

    char id;
    String name;
    int people;
    int money;

    public keChe(char newId, String newName, int newpeople, int newMenoy) {
        // TODO Auto-generated constructor stub
        this.id = newId;
        this.name = newName;
        this.people = newpeople;
        this.money = newMenoy;
    }

    public String Xiaoqiche() {
        return  id + "  " + name + "   载货量:" + people + "   租金:" + money
                + "每天";

    }

    public keChe(String newName, char newId, int newpeople, int newMenoy) {
        // TODO Auto-generated constructor stub
        this.id = newId;
        this.name = newName;
        this.people = newpeople;
        this.money = newMenoy;
    }
//客车也有 大客车和小客车 所以有两个有参数的构造方法并且有两个 重写的方法
    public String Dakeche() {

        return  id + "  " + name + "   载货量:" + people + "  租金:" + money
                + "每天";
    }

}

 

/*皮卡 继承了 ZaiKeAndRen 抽象的父类 同样在main 方法中会新建它的对象，同样主要也是数据模型需要*/
public class pickUp extends ZaiKeAndRen {

    char id;
    String name;
    int liang;
    int poeple;
    int money;

    public pickUp(char newId, String newName, int newLiang, int newpeople,
            int newMenoy) {
        // TODO Auto-generated constructor stub
        this.id = newId;
        this.name = newName;
        this.liang = newLiang;
        this.poeple = newpeople;
        this.money = newMenoy;
    }

    @Override//Override 重写 
    public String yunhuoAndzairen() {
        return id + "  " + name + "     "+"     载货量:" + liang + " 载人量:" + poeple+ " 租金："+money + "每天";

    }

}

 

/*该类为主方法所在的类，前面几个类是给出 数据模型（车）即现实世界的事物主要特征，为我们要现实的信息系统工作。那么一定还有业务类构成租车系统的一部分*/
public class TestCar {

    /**
     * @param args
     */
    static Scanner sinput = new Scanner(System.in);

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        while (true) {           //一直循环 直到不满足条件
            Business business = new Business();
            Business.welcome(); //  类名直接调用 静态方法
            int choose = sinput.nextInt();
            if (choose == 1) {
                ZaiKe ke1 = new keChe('1', "奥迪A4", 5, 100);
                ZaiKe ke2 = new keChe("金龙-8", '2', 30, 300);
                ZaiHuo huo1 = new huoChe('3', "小东风", 5, 150);
                ZaiHuo huo2 = new huoChe("解放", '4', 30, 350);
                ZaiKeAndRen keAndRen = new pickUp('5', "小力帆", 5, 5, 200);
                System.out.println("序号"+"   "+"牌子"+"           "+"  容量"+
                "                  "+"租金");
                System.out.println(ke1.Xiaoqiche() + "\n" + ke2.Dakeche()
                        + "\n" + huo1.xiaoHuoche() + "\n" + huo2.daHuoche()
                        + "\n" + keAndRen.yunhuoAndzairen());
                System.out.println("请输入租车天数");
                int day = sinput.nextInt();
                String zhangdan = business.jisuan(day);  //调用业务类韩餐方法 
                System.out.println(zhangdan);
            } else if (choose == 0) {
                System.out.println("谢谢惠顾");
                break;                     //输入 0 跳出 循环
            }
        }

    }
}

 

/*英文水平低，就随便用了个名字。这个Business类（业务类）用来统计租车天数，金额，载货量，载客量，在main方法中会新建它的对象来实现*/
public class Business {

    int allMoney = 0;   //对于 总的统计的变量 先赋值
    int allHuo = 0;
    int allPeople = 0;
    int allDay;
    int momey[] = new int[] { 100, 300, 150, 350, 200 };
    int liang[][] = new int[][] { { 5, 0 }, { 30, 0 }, { 0, 5 }, { 0, 35 },
            { 5, 5 } };
    static Scanner scanner = new Scanner(System.in);

    public static void welcome() {
        System.out.println("欢迎你来到答答租车系统，输入 1 租车，输入 0 退出 ");
    }

    public String jisuan(int day) {

        allDay = day;
        System.out.println("请输入租车数量：");
        int number = scanner.nextInt();
        for (int i = 0; i < number; i++) {
            System.out.println("请输入第" + (i + 1) + "辆车序号");
            int s = scanner.nextInt();
            allMoney += momey[s - 1];
            for (int j = s; j <= s; j++) {
                allPeople += liang[s - 1][0];
                allHuo += liang[s - 1][1];
            }
        }
        allMoney = allMoney * allDay;
        return "租车天数:"+ allDay + " 总金额:"+ allMoney + " 总载货量："+ allHuo +" 总载人量:"
                + allPeople;

    }
}

 

没有异常处理，只是简单的输入输出，谢谢大家。