租车题的答案整理，用于在线参考

package zuche;
import java.util.Scanner;
public class Initail {/**
      * 做一个答答租车系统，显示车的种类供用户选择
      * 车的种类分为三种，载人、载货、即可以载人又可以载货
      * 显示出用户选择的车名，同时显示出用户选择的车名
      * 最后再计算总金额
      * @param args
      */

     static Scanner in=new Scanner(System.in);
     static int sl;//保存用户租车的 
     static int n;
     static int count=0;//统计输入序号的次数
     static int day;//获取天数
     static int allMoney=0;//统计总金额
     static int allPeople=0;//统计总人数
     static double allGoods=0;//统计货物重量

     public static void main(String[] args) {
      System.out.println("请问是否进入答答租车系统：1是 2否");
      n=in.nextInt();//获取用户输入的值来确认是否进入系统
      if(n==1){
       Car cars[]={new People(1,"奥迪A4",500,4),
/*多态引用多个类（父类Car对上各子类） 用数组遍历多个对象，
People(int no,String name, int money,int people)=new People(1,"奥迪A4",500,4)，
People子类定义了自己的属性，然后继承了Car。
Car中的属性可以被引用，
在People子类中是直接输出的。遍历时定下的值在People子类中输出了*/
        new People(2,"马自达6",400,4),
        new Pika(3,"皮卡雪6",450,4,2),
        new People(4,"金龙",800,20),
        new Goods(5,"松花江",400,4),
        new Goods(6,"依维柯",1000,20)};
       System.out.println("请输入租车的数量：");
       //_________________________________________分割线______________________________________________
       sl=in.nextInt();//获取用户租车的数量
       int[] xh=new int[sl];//通过数组保存输入的序号
       while(count<sl){
        System.out.println("请输入第"+(count+1)+"辆车的序号：");
        int x=in.nextInt();//输入的序号
        xh[count]=x;//将序号存储在数组中
        count++;//通过累加的形式，将序号一一存储在数组中
        continue;
       }
       System.out.println("请输入租车天数：");
       //_________________________________________分割线______________________________________________
       day=in.nextInt();
       //此部分计算
       //计算人数
       for(int i=0;i<cars.length;i++){//循环cars数组。
        for(int j=0;j<sl;j++){//循环用户想租车的序号
         if(cars[i].no==xh[j]&&cars[i].people>0&&cars[i].good>0){//此处判定pika类型的车辆，计算结果
          System.out.print(cars[i].name+" ");//获取pika车辆的名称
          allGoods=allGoods+cars[i].good;//获取pika类型车辆的货物重量，进行计算
          allPeople=allPeople+cars[i].people;//获取pika类型的人数，进行计算
          allMoney=allMoney+cars[i].money;//获取pika类型的租金，进行计算
         }
        }
       }
       System.out.println("***载人的车：");
       //_________________________________________分割线_______________________________________________
       for(int i=0;i<cars.length;i++){
        for(int j=0;j<sl;j++){
         if(cars[i].no==xh[j]&&cars[i].people>0){//此处判定载人类型的车辆，计算结果载人数
          System.out.print(cars[i].name+" ");

          allPeople=allPeople+cars[i].people;
          allMoney=allMoney+cars[i].money;
         }
        }
       }
        System.out.println("总人数："+allPeople);
        System.out.println("***可载物的车有:");
        //_________________________________________分割线_______________________________________________
        for(int i=0;i<cars.length;i++){//此处判定载货类型的车辆，计算结果载物重量
        for(int j=0;j<sl;j++){
         if(cars[i].no==xh[j]&&cars[i].good>0){
          System.out.println("***载货的车：");
          System.out.print(cars[i].name+" ");
          allGoods=allGoods+cars[i].good;
          allMoney=allMoney+cars[i].money;
         }
        }
       } 
       System.out.println("总载货量："+allGoods+"吨");
       System.out.println("总金额"+allMoney*day);
      }else{
       System.out.println("即将退出答答租车系统");
      }
     }

    }
//父类___________________________________________________
package zuche;

public class Car {
    int no;
     String name;
     int money;
     int people;
     double good;
     public Car(int no,String name,int money,double good){
      this.no=no;
      this.name=name;
      this.money=money;
      this.good=good;
     }
     public Car(int no,String name,int money,int people){
      this.no=no;
      this.name=name;
      this.money=money;
      this.people=people;
     }
     public Car(int no,String name,int money,int people,double good){
      this.no=no;
      this.name=name;
      this.money=money;
      this.people=people;
      this.good=good;
     }
     public String getName() {
      return name;
     }
     public void setName(String name) {
      this.name = name;
     }
     public int getMoney() {
      return money;
     }
     public void setMoney(int money) {
      this.money = money;
     }
     public int getNo() {
      return no;
     }
     public void setNo(int no) {
      this.no = no;
     }
     public int getPeople() {
      return people;
     }
     public void setPeople(int people) {
      this.people = people;
     }
     public double getGood() {
      return good;
     }
     public void setGood(double good) {
      this.good = good;
     }
}
//子类_____________________________________________
package zuche;

public class Goods extends Car {
    double good;
     public Goods(int no,String name, int money,double good) {
      super(no,name, money,good);
      // TODO Auto-generated constructor stub

      System.out.println(no+". "+name+" "+money+"元/天 "+" "+good+"吨");
     }

}
//__________________________________________
package zuche;

public class People extends Car {
    public People(int no,String name, int money,int people) {
          super(no,name, money,people);
          // TODO Auto-generated constructor stub
          System.out.println(no+". "+name+" "+money+"元/天 "+people+"人");
         }

        // TODO 自动生成的构造函数存根
    }
//________________________________________________
package zuche;

public class Pika extends Car {
     public Pika(int no,String name, int money,int people,double good) {
          super(no,name, money,people,good);
          // TODO Auto-generated constructor stub
          System.out.println(no+". "+name+" "+money+"元/天 "+people+" "+good+"吨");
         }
        }