Java入门第二季6-1租车项目代码

一共有5个类

1. Car类 //作为父类
   package com.imooc;
   public class Car {
   public int ID;
   public String name;
   public int rent;
   public int PersonCapacity;
   public int GoodsCapacity;
   }
   2.passengerCar //客车
   public class passengerCar extends Car{
   public passengerCar(int newID,String newName,int newRent,int newPersonCapacity){
   this.ID = newID;
   this.name = newName;
   this.rent = newRent;
   this.PersonCapacity = newPersonCapacity;
   }
   }
   3.Pickup //皮卡
   public class Pickup extends Car{
   public Pickup(int newID,String newName,int newRent,int newPersonCapacity,int newGoodsCapacity){
   this.ID = newID;
   this.name = newName;
   this.rent = newRent;
   this.PersonCapacity = newPersonCapacity;
   this.GoodsCapacity = newGoodsCapacity;
   }
   }
   4.Trunk //货车
   public class Trunk extends Car{
   public Trunk(int newID,String newName,int newRent,int newGoodsCapacity){
   this.ID = newID;
   this.name = newName;
   this.rent = newRent;
   this.GoodsCapacity = newGoodsCapacity;
   }
   }

5.StartMain // 主函数

package com.imooc;
import java.util.*;
public class StartMain {
public static void main(String[] args){
Car[] AllCar = {new passengerCar(1,"奥迪A4",500,4),new passengerCar(2,"马自达6",400,4),new Pickup(3,"皮卡雪",450,4,2),new passengerCar(4,"金龙",800,20),new Trunk(5,"松花江",400,4),new Trunk(6,"依维柯",1000,20)};
System.out.println("欢迎来到租车系统");
System.out.println("您是否要租车:1是 0否");
Scanner input = new Scanner(System.in);
int Acess = input.nextInt();
if(Acess!=1)
return;
System.out.println("您可租车的类型及其价目表:");
System.out.println("序号 汽车名称 租金 容量 ");
for(int i=0;i<AllCar.length;i++){
if(AllCar[i] instanceof passengerCar) {
System.out.printf("%-1d. %-6s%-4d元/天 载人:%-1d人%n",AllCar[i].ID,AllCar[i].name,AllCar[i].rent,AllCar[i].PersonCapacity);
}
else if(AllCar[i] instanceof Trunk){
System.out.printf("%-1d. %-6s%-4d元/天 载货:%-1d吨%n",AllCar[i].ID,AllCar[i].name,AllCar[i].rent,AllCar[i].GoodsCapacity);
}
else{
System.out.printf("%-1d. %-6s%-4d元/天 载人:%-1d人 载货:%-1d吨%n",AllCar[i].ID,AllCar[i].name,AllCar[i].rent,AllCar[i].PersonCapacity,AllCar[i].GoodsCapacity);
}
}
System.out.println("请输入您要租汽车的数量:");
int Num = input.nextInt();
//创建一个Car类，存储被租的汽车对象
Car[] odered = new Car[Num];
//输入汽车的序号
for(int i = 0;i < Num;i++) {
System.out.println("请输入第"+ (i+1) +"辆车的序号");
//汽车序号
int id = input.nextInt();
//通过遍历AllCar里所有汽车的ID，把用户选择的车对象放进odered数组
for(int j = 0;j<AllCar.length;j++) {
if(AllCar[j].ID == id){
odered[i]=AllCar[j];
break;
}
}
}
System.out.println("请输入租车天数");
int days = input.nextInt();
System.out.println("您的账单:");
System.out.println("***可载人的车有:");
int PassengerNum=0;
int TotalPrice=0;
//这里的算价钱还有问题，皮卡算了两次价格，待修改。
//随便修改了一下,第二次屏蔽了皮卡的租金计算,还待优化
for(int i =0;i<Num; i++){
if(odered[i] instanceof passengerCar || odered[i] instanceof Pickup){
System.out.println(odered[i].name);
PassengerNum += odered[i].PersonCapacity;
TotalPrice += odered[i].rent;
// System.out.println("第"+(i+1)+"台车的价钱为:"+odered[i].rent);
}
}
System.out.println("共载人:"+ PassengerNum +"人");

    System.out.println("载货的汽车有:");
    int GoodsNum=0;
    for(int i = 0;i<Num;i++){
        if(odered[i] instanceof Trunk || odered[i] instanceof Pickup){
            System.out.println(odered[i].name);
            GoodsNum +=odered[i].GoodsCapacity;
            if(odered[i] instanceof  Trunk) {
                TotalPrice += odered[i].rent;
            }
        //    System.out.println("第"+(i+1)+"台车的价钱为:"+odered[i].rent);
        }
    }
    System.out.println("共载货:"+GoodsNum+"吨");
    System.out.printf("***租车总价格:"+(TotalPrice*3)+"元");
}

}