[Java] Java实现答答租车系统

package car;
 
public abstract class car {
  protected int price;
  protected string name;
  protected int getprice() {
  return price;
  }
  protected string getname() {
  return name;
  }
  public int getpersonnum() {
  // todo auto-generated method stub
  return 0;
  }
  public int getgoodsnum() {
  // todo auto-generated method stub
  return 0;
  }
 
}

package car;
 
public class mannedcar extends car {
  private int personnum;
 
  public mannedcar() {
  this.personnum = 0;
  this.price = 0;
  this.name = "";
  }
 
  public mannedcar(int personnum, int price, string name) {
  this.personnum = personnum;
  this.price = price;
  this.name = name;
  }
 
  @override
  public int getpersonnum() {
  return personnum;
  }
}

package car;
 
public class truck extends car{
  private int goodsnum;
 
  public truck() {
  this.price = 0;
  this.goodsnum = 0;
  this.name = "";
  }
 
  public truck(int price, int goodsnum, string name) {
  this.price = price;
  this.goodsnum = goodsnum;
  this.name = name;
  }
 
  @override
  public int getgoodsnum() {
  return goodsnum;
  }
}

package car;
 
public class bothcarry extends car {
  private int personnum;
  private int goodsnum;
 
  public bothcarry() {
  this.personnum = 0;
  this.goodsnum = 0;
  this.name = "";
  this.price = 0;
  }
 
  public bothcarry(int price, int personnum, 
    int goodsnum, string name) {
  this.personnum = personnum;
  this.goodsnum = goodsnum;
  this.price = price;
  this.name = name;
  }
 
  public int getpersonnum() {
  return personnum;
  }
 
  public int getgoodsnum() {
  return goodsnum;
  }
}

package car;
 
import java.util.scanner;
import java.util.arraylist;
 
public class carsystem {
 
  private static string goodbyeinfo = "欢迎再次使用本系统，再见！"; 
  private static int dayborrow;
 
  public static void beginsystem() {
  carsystem.systemwelcome();
  scanner scanner = new scanner(system.in);
  string usercommand = scanner.next();
 
 
  switch(usercommand){
  case "1":
    carsystem.getuserinput();
    break;
  case "0":
    system.out.println(goodbyeinfo);
    break;
  default:
    system.out.println("输入错误..end running..");
    system.exit(0);
    break;
  }
  }
 
  public static void systemwelcome() {
  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");
  }
 
  public static void getuserinput() {
  int numcarborrow = 0;
  arraylist<car> carlist = new arraylist<car>(6);
  carlist.add(new mannedcar(4,500,"奥迪a4"));
  carlist.add(new mannedcar(4,400,"马自达6"));
  carlist.add(new bothcarry(450,4,2,"皮卡雪6"));
  carlist.add(new mannedcar(20,800,"金龙"));
  carlist.add(new truck(400,4,"松花江"));
  carlist.add(new truck(1000,20,"依维河"));
 
  system.out.println("请输入您要租汽车的数量:");
  scanner sr = new scanner(system.in);
 
  numcarborrow = sr.nextint();
 
  int[] carnumlist = new int[numcarborrow];
  for(int i=0;i<numcarborrow;i++) {
    system.out.println("请输入第" + (i+1) + "辆车的序号:");
    if (sr.hasnext()) {
    carnumlist[i] = sr.nextint();
    }
  }
  system.out.println("请输入租车天数:");
  if (sr.hasnext()) {
    dayborrow = sr.nextint();
  }
  sr.close();
 
  stringbuilder manned = new stringbuilder();
  int numofmanned = 0;
  stringbuilder goods = new stringbuilder();
  int numofgoods = 0;
  int totalcost = 0;
 
  for(int i = 0;i < carnumlist.length;i++) {
    if(carnumlist[i]>0 && carnumlist[i] < 3 || carnumlist[i]==4) {
    manned.append("  ");
    manned.append(carlist.get(carnumlist[i]-1).getname());
    numofmanned += carlist.get(carnumlist[i]-1).getpersonnum();
    }
    else if(carnumlist[i]==3) {
    manned.append("  ");
    manned.append(carlist.get(carnumlist[i]-1).getname());
    goods.append("  ");
    goods.append(carlist.get(carnumlist[i]-1).getname());
    numofmanned += carlist.get(carnumlist[i]-1).getpersonnum();
    numofgoods += carlist.get(carnumlist[i]-1).getgoodsnum();
    }
    else {
    goods.append("  ");
    goods.append(carlist.get(carnumlist[i]-1).getname());
    numofgoods += carlist.get(carnumlist[i]-1).getgoodsnum();
    }
    totalcost += carlist.get(carnumlist[i]-1).getprice();
  }
  //output
  system.out.println("您的账单:\n***可载人的车有:");
  system.out.println(manned + "  共载人: " + numofmanned); 
  system.out.println("***载货的车有:\n" + goods + "  共载货 : " + numofgoods + "吨");
  system.out.println("***租车总价格: " + totalcost * dayborrow + "元");
 
  }
 
}

package car;
 
public class carsystemtest {
 
  public static void main(string[] args) {
  // todo auto-generated method stub
  carsystem.beginsystem();
  }
 
}