Java ----- 答答租车系统练习

Car类

public class Car {

    private String CarName;
    private int Price;

    public Car(String CarName,int Price){
        this.CarName = CarName;
        this.Price = Price;
    }

    public String getCarName() {
        return CarName;
    }
    public void setCarName(String carName) {
        CarName = carName;
    }
    public int getPrice() {
        return Price;
    }
    public void setPrice(int price) {
        Price = price;
    }

}

MannerCar类-------载客类型

public class MannerCar extends Car
                       implements ImannedCar{

    private int mannednum;

    public MannerCar(String CarName,int Pirce,int mannedNum){
        super(CarName,Pirce);
        this.mannednum = mannedNum;
    }

    @Override
    public void setMannedNum(int num) {
        // TODO Auto-generated method stub
        mannednum = num;
    }

    @Override
    public int getMannedNum() {
        // TODO Auto-generated method stub
        return mannednum;
    }

}

ImannedCar----载客类型接口

public interface ImannedCar {
    public void setMannedNum(int num);
    public int getMannedNum();
}

CargoCar-----载货类型

public class CargoCar extends Car
                      implements ICargoCar{

    private int carryingNum;

    public CargoCar(String CarName,int Price,int carryingNum) {
        // TODO Auto-generated constructor stub
        super(CarName, Price);
        this.carryingNum = carryingNum;
    }

    @Override
    public void setCarrying(int num) {
        // TODO Auto-generated method stub
        carryingNum = num;
    }

    @Override
    public int getCarrying() {
        // TODO Auto-generated method stub
        return carryingNum;
    }

}

ICargoCar------载货类型接口

public interface ICargoCar {
    public void setCarrying(int num);
    public int getCarrying();
}

MoreCar------既能载客又能载货类型

public class MoreCar extends Car 
                     implements ImannedCar,ICargoCar{

    private int mannedNum;
    private int carryingNum;

    public MoreCar(String CarName, int Price, int mannedNum,int carryingNum) {
        super(CarName, Price);
        this.carryingNum = carryingNum;
        this.mannedNum = mannedNum;
    }

    @Override
    public void setCarrying(int num) {
        // TODO Auto-generated method stub
        carryingNum = num;
    }

    @Override
    public int getCarrying() {
        // TODO Auto-generated method stub
        return carryingNum;
    }

    @Override
    public void setMannedNum(int num) {
        // TODO Auto-generated method stub
        mannedNum = num;
    }

    @Override
    public int getMannedNum() {
        // TODO Auto-generated method stub
        return mannedNum;
    }

}

Test-----测试类

public class Test {

    Car[] NewCar;

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        //设置初始化测试对象
        Test test = new Test();
        test.Setting();

        //num:租车数量
        //TotalNum：车的总数量
        //Serial：客户租车的序号
        //用户租车的天数
        int num = 0,TotalNum = 0;
        int[] Serial = null;
        int TotalDay = 0,TotalPirce = 0;

        Scanner sc = new Scanner(System.in);
        System.out.println("欢迎使用答答租车系统");
        System.out.println("您是否要租车：1是 0否");
        int InOrOu = sc.nextInt();
        if(InOrOu != 1) return;

        System.out.println("您可租车的类型及价目表：");
        System.out.println("序号  汽车名称    租金       容量");

        int j = 1;
        int length = test.NewCar.length;
        for(Car car:test.NewCar){
            if(car instanceof MannerCar)
                System.out.println((j++) + "    " + car.getCarName() +
                                     "  " + car.getPrice() + "元/天" +
                                     "      " + "载人：" + ((MannerCar) car).getMannedNum() + "人");

            if(car instanceof CargoCar)
                System.out.println((j++) + "    " + car.getCarName() +
                     "  " + car.getPrice() + "元/天" +
                     "      " + "载人：" + ((CargoCar) car).getCarrying() + "吨");

            if(car instanceof MoreCar)
                System.out.println((j++) + "    " + car.getCarName() +
                     "  " + car.getPrice() + "元/天" +
                     "      " + "载人：" + ((MoreCar) car).getMannedNum() + "人" + 
                     " 载货:" + ((MoreCar) car).getCarrying() + "吨");
        }

        System.out.println("请输入您要租汽车的数量");
        num = sc.nextInt();

        while(num > length){
            System.out.println("您所需要的数量超出了总数量，请重新输入");
            num = sc.nextInt();
        }

        Serial = new int[num];

        for(int i=0;i<num;i++){
            System.out.println("请输入第" + (i+1) + "辆汽车的序号");
            Serial[i] = sc.nextInt();

            while(Serial[i] > length){
                System.out.println("您所需要的数量超出了总数量，请重新输入");
                Serial[i] = sc.nextInt();
            }
        }

        System.out.println("请输入租车的天数");
        TotalDay = sc.nextInt();

        System.out.println("您的账单：");
        System.out.println("***可载人的车有：");
        int TotalPeople = 0;
        for(int i=0;i<num;i++){
            if(test.NewCar[Serial[i]-1] instanceof MannerCar){
                System.out.print(" " + ((MannerCar) test.NewCar[Serial[i]-1]).getCarName());
                TotalPeople += ((MannerCar) test.NewCar[Serial[i]-1]).getMannedNum();
                TotalPirce += ((MannerCar) test.NewCar[Serial[i]-1]).getPrice() * TotalDay;
            }
            if(test.NewCar[Serial[i]-1] instanceof MoreCar){
                System.out.print(" " + ((MoreCar) test.NewCar[Serial[i]-1]).getCarName());
                TotalPeople += ((MoreCar) test.NewCar[Serial[i]-1]).getMannedNum();
            }
        }
        System.out.println(" 共载人:" + TotalPeople + "人");

        System.out.println("***载货的车有：");
        int TotalCarrying = 0;
        for(int i=0;i<num;i++){
            if(test.NewCar[Serial[i]-1] instanceof CargoCar){
                System.out.print(" " + ((CargoCar) test.NewCar[Serial[i]-1]).getCarName());
                TotalCarrying += ((CargoCar) test.NewCar[Serial[i]-1]).getCarrying();
                TotalPirce += ((CargoCar) test.NewCar[Serial[i]-1]).getPrice() * TotalDay;
            }
            if(test.NewCar[Serial[i]-1] instanceof MoreCar){
                System.out.print(" " + ((MoreCar) test.NewCar[Serial[i]-1]).getCarName());
                TotalCarrying += ((MoreCar) test.NewCar[Serial[i]-1]).getCarrying();
                TotalPirce += ((MoreCar) test.NewCar[Serial[i]-1]).getPrice() * TotalDay;
            }   
        }
        System.out.println(" 共载货:" + TotalCarrying + "吨");

        System.out.println("***租车总价格：" + TotalPirce + "元");

    }

    private void Setting(){
        NewCar = new Car[]{
                 new MannerCar("奥迪A4", 500, 4),
                 new MannerCar("马自达6", 400, 4),
                 new MannerCar("奥迪A4", 500, 4),
                 new CargoCar("松花江", 400, 4),
                 new CargoCar("依维柯", 1000, 20),
                 new MoreCar("皮卡雪6", 450, 4, 2)
        };
    }

}

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