最后那个租车系统的项目代码 有没有标准的 请大神给我一份比较好的，注释写清楚的 谢谢
package NewCar;
import java.util.Scanner;
public abstract class NewCar {
public int number= 0;
public int weight = 0;
public int cost = 0;
public String name;
}
**************************
package NewCar;
public class PassengerCar1 extends NewCar {
public PassengerCar1(String name,int number,int cost){
super.cost = cost;
super.name = name;
super.number = number;
}
}
*****************************************
package NewCar;
public class PickUp1 extends NewCar {
public PickUp1(String name,int number,int cost,int weight){
super.cost = cost;
super.name = name;
super.number = number;
super.weight = weight;
}
}
*********************************
package NewCar;
public class Truck1 extends NewCar {
public Truck1(String name,int weight,int cost){
this.name = name;
this.cost = cost;
this.weight = weight;
}
}
***************************************
package NewCar;
import java.util.Scanner;
public class Main1 {
public static void main(String[]args){
int Cost = 0;
int Weight = 0;
int Number = 0;
NewCar[] n = new NewCar[5];
n[0] = new PassengerCar1("小轿车 ",4,300);
n[1] = new PassengerCar1("大客车 ",30,800);
n[2] = new Truck1("轻型货车 ",8,500);
n[3] = new Truck1("重型货车 ",15,800);
n[4] = new PickUp1("皮卡车 ",4,600,4);
System.out.println("您是否需要租车：1.是，0.否");
Scanner scr = new Scanner(System.in);
int t= scr.nextInt();
while(t==1){
System.out.println("欢迎来到租车系统！");
System.out.println("********************************************************");
System.out.println(" 车型： 载客量（人）： 载重量（吨）： 费用（元/天）： 序号：");
for(int j =0;j<n.length;j++){
System.out.println(n[j].name+" "+n[j].number+" "
+n[j].weight+" "+n[j].cost+" "+(j+1));
}
System.out.println("*********************************************************");
System.out.println("选择想要租用的天数：");
int t2 = scr.nextInt();
System.out.println("选择想要租用的车辆数：");
int t3 = scr.nextInt();
System.out.println("选择相应序号选择车型：");
for(int k=1;k<=t3;k++){
int t1 = scr.nextInt();
if(t1>5){
System.out.println("目前只有五辆车，请输入1到5的数！再见！");
System.exit(0);
}
System.out.println("这是您租用的第"+k+"辆车");
System.out.println("车型："+n[t1-1].name+" 载客量："+n[t1-1].number+"人，载重量："+
n[t1-1].weight+"吨，费用："+n[t1-1].cost+"元/天，序号："+(t1));
Cost = Cost + n[t1-1].cost;
Weight = Weight + n[t1-1].weight;
Number = Number + n[t1-1].number;
}
System.out.println("谢谢您的使用！");
System.out.println("您本次总租用车辆："+t3+"辆，总租用天数："+t2+"天，总载客量："+Number
+"人，总载重量："+Weight+"吨，总费用："+(Cost*t2)+"元");
}
System.out.println("再见");
System.exit(0);
}
}package com.imooc;
public abstract class Car {
public String name;
public int zj;
public int zr;
public int zh;
}
/////////////////////////////////////////
package com.imooc;
public class Zr extends Car {
public Zr(String name,int zj,int zr){
this.name=name;
this.zj=zj;
this.zr=zr;
}
public String toString(){
return(name+"\t"+zj+"\t\t\t"+zr+"人");
}
}
////////////////////////////////////////////////
package com.imooc;
public class Zh extends Car {
public Zh(String name,int zj,int zh){
this.name=name;
this.zj=zj;
this.zh=zh;
}
public String toString(){
return(name+"\t"+zj+"\t\t\t"+zh+"吨");
}
}
////////////////////////////////////////////////
package com.imooc;
public class Zrh extends Car {
public Zrh(String name,int zj,int zr,int zh){
this.name=name;
this.zj=zj;
this.zr=zr;
this.zh=zh;
}
public String toString(){
return(name+"\t"+zj+"\t\t\t"+zr+"人"+zh+"吨");
}
}
///////////////////////////////////////////////////////
package com.imooc;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
Car car[] = new Car [6];
car [0]=new Zr("奥迪A4",500,4);
car [1]=new Zr("马自达6",400,4);
car [3]=new Zr("金龙",800,20);
car [4]=new Zh("松花江",400,4);
car [5]=new Zh("依维柯",1000,20);
car [2]=new Zrh("皮卡雪6",450,4,2);
System.out.println("欢迎使用答答租车系统\n请问是否需要租车：1是，0否");
Scanner input = new Scanner(System.in);
int i = input.nextInt();
if (i==1){
System.out.println("您可租车的类型和价目表");
System.out.println("序号\t汽车名称\t租金\t容量\n"
+ "1.\t奥迪A4\t500元/天\t载人：4人\n"
+ "2.\t马自达6\t400元/天\t载人：4人\n"
+ "3.\t皮卡雪6\t120元/天\t载人：4人 载货：2吨\n"
+ "4.\t金龙\t800元/天\t载人：20人\n"
+ "5.\t松花江\t400/天\t载货：4吨\n"
+ "6.\t依维柯\t1000元/天\t载货：20吨\t");
System.out.println("请输入您要租车的数量：");
int x=input.nextInt();
int zzj=0;
int zzr=0;
int zzh=0;
String kzr=" ";
String kzh=" ";
for (int j=1;j<=x;j++){
System.out.println("请输入第"+j+"辆车的序号：");
int y = input.nextInt();
zzj = zzj+car[y-1].zj;
zzr = zzr+car[y-1].zr;
zzh = zzh+car[y-1].zh;
if (car[y-1].zr!=0) kzr = kzr+car[y-1].name+" ";
if (car[y-1].zh!=0) kzh = kzh+car[y-1].name+" ";
}
System.out.println("请输入您要租车的天数：");
int ts = input.nextInt();
zzj=zzj*ts;
System.out.println("您的账单：\n"
+ "***可载人的车有:\n"+ kzr
+"\n***可载货的车有:\n"+kzh);
System.out.println("***租车总价格：\n "+zzj);
}
}
}