慕课练习——答答租车系统

项目背景分析：

根据所学知识编写一个控制台程序“答答租车系统”

功能：

1.展示所以可租车辆

2.选择车型，租车量

3.展示租车清单，包括：总金额，总载货量及其车型，总载人量及其车型

Car.java

public class Car {

public String name;
public double rent;

public void setName(String name) {
   this.name=name;
}
public String getName() {
   return name;
}
public void setRent(double rent) {
   this.rent=rent;
}
public double getRent() {
   return rent;
}

}

PassengerCar.java

public class PassengerCar extends Car{

public int pCapacity;

   public void setpCapacity(int pCapacity) {
       this.pCapacity=pCapacity;
   }
   public int getpCapacity() {
       return pCapacity;
   }

public PassengerCar(String Aname,double Arent,int ApCapacity) {
   name=Aname;
   rent=Arent;
   pCapacity=ApCapacity;
}

}

TruckCar.java

public class TruckCar extends Car{

   public int tCapacity;

   public void settCapacity(int tCapacity) {
       this.tCapacity=tCapacity;
   }
   public int gettCapacity() {
       return tCapacity;
   }

   public TruckCar(String Aname,double Arent,int AtCapacity) {
       name=Aname;
       rent=Arent;
       tCapacity=AtCapacity;
   }

}

PickUp.java

public class PickUp extends Car{

   public int pCapacity;
   public int tCapacity;

   public void setpCapacity(int pCapacity) {
       this.pCapacity=pCapacity;
   }
   public int getpCapacity() {
       return pCapacity;
   }
   public void settCapacity(int tCapacity) {
       this.tCapacity=tCapacity;
   }
   public int gettCapacity() {
       return tCapacity;
   }

   public PickUp(String Aname,double Arent,int ApCapacity,int AtCapacity) {
       name=Aname;
       rent=Arent;
       pCapacity=ApCapacity;
       tCapacity=AtCapacity;
   }
}

Test.java

import java.util.Scanner;

public class Test {
   public static void main(String args[]) {
       System.out.println("欢迎使用答答租车系统");
       System.out.println("你是否需要租车 1：是，0：不是");
       Scanner scan=new Scanner(System.in);
       String input=scan.next();

       if(input.equals("1")) {
           System.out.println("你可租车的类及其价目表");
           System.out.println("序号"+"\t汽车名称"+"\t租金"+"\t容量");

           Car[] cars= {new PassengerCar("奥迪A4", 500, 4),new PassengerCar("马自达4", 400, 4),
                   new PickUp("皮卡雪6", 150, 4, 2),new PassengerCar("金龙", 800, 20),
                   new TruckCar("松花江", 400, 4),new TruckCar("松花江", 400, 4)};

           int index=1;
           for(Car car:cars) {
               if(car instanceof PassengerCar) {
                   System.out.println(" "+index+"\t"+car.getName()+"\t"+car.getRent()+"\t载客："+((PassengerCar)car).getpCapacity());
           }else if(car instanceof PickUp) {
               System.out.println(" "+index+"\t"+car.getName()+"\t"+car.getRent()+"\t载客："+((PickUp)car).getpCapacity()+"\t载货："+((PickUp)car).gettCapacity());
               }
           else {
               System.out.println(" "+index+"\t"+car.getName()+"\t"+car.getRent()+"\t载货："+((TruckCar)car).gettCapacity());
           }
               index++;
       }

System.out.println("请输入你要租车的数量");
int rentNums=scan.nextInt();
int rentdays;
int rentFare=0;
String passCarName =new String();
String truckCarName =new String();
int indexCar;
int pCap=0;
int tCap=0;

for(int i=0;i<rentNums;i++) {
   System.out.println("请输入第"+(i+1)+"辆车的序号");
   indexCar=scan.nextInt()-1;

   if(cars[indexCar] instanceof PassengerCar){
           passCarName +=cars[indexCar].name+"\t";
           pCap +=((PassengerCar)(cars[indexCar])).getpCapacity();
       }else if(cars[indexCar] instanceof PickUp){
           passCarName +=cars[indexCar].name+"\t";
           truckCarName +=cars[indexCar].name+"\t";
           pCap +=((PickUp)(cars[indexCar])).getpCapacity();
           tCap +=((PickUp)(cars[indexCar])).gettCapacity();
       }
   else{
           truckCarName +=cars[indexCar].name+"\t";
           tCap +=((TruckCar)(cars[indexCar])).gettCapacity();
       }
   rentFare +=cars[indexCar].rent;
}

System.out.println("请输入租车天数");
rentdays=scan.nextInt();
System.out.println("你的账单");
System.out.println("****可载人的车有：");
System.out.println(passCarName+"共载人为："+pCap);
System.out.println("可载货的车有：");
System.out.println(truckCarName+"共载人为："+tCap);
System.out.println("****租车的总价格为：");
System.out.println(rentFare*rentdays);

   }

}
}

运行结果

欢迎使用答答租车系统
你是否需要租车 1：是，0：不是
1
你可租车的类及其价目表
序号   汽车名称   租金   容量
1   奥迪A4   500.0   载客：4
2   马自达4   400.0   载客：4
3   皮卡雪6   150.0   载客：4   载货：2
4   金龙   800.0   载客：20
5   松花江   400.0   载货：4
6   松花江   400.0   载货：4
请输入你要租车的数量
2
请输入第1辆车的序号
2
请输入第2辆车的序号
4
请输入租车天数
3
你的账单
****可载人的车有：
马自达4   金龙   共载人为：24
可载货的车有：
共载人为：0
****租车的总价格为：
3600

慕课练习——答答租车系统

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