項目介紹:根據所學知識，編寫1個控制臺版的”答答租車系統”.

功能:

1:展現所有可租車輛,
2:選擇車型,租車量
3:展現租車清單，包括：總金額，總載貨量及其車型，總數人量及其車型.

項目分型:

1:數據模型分析;
2:業務模型分析;
3:顯示和流程分析.

package com.car;

import java.util.Scanner;

public class CarTest {

/**
 * @param args
 */
public static void main(String[] args) {
    PeopleCar car1 = new PeopleCar("奧迪A4",500,4);
    PeopleCar car2 = new PeopleCar("馬自達6",400,4);
    PeoplegoodCar car3 = new PeoplegoodCar("皮卡雪6",450,4,2);
    PeopleCar car4 = new PeopleCar("金龍",800,20);
    GoodCar car5 = new GoodCar("松花江",400,4);
    GoodCar car6 = new GoodCar("依維柯",1000,20);

    System.out.println("歡迎使用達達租車系統:");
    System.out.println("您是不是要租車:1是 0否");
    Scanner input = new Scanner(System.in);
    int rent = input.nextInt();
    if (rent == 1) {
        System.out.println("您可租車的類型及其價目表:");
        System.out.println("序號\t 汽車名稱\t 租金\t 容量");
        System.out.println("1.\t"+car1.name+"\t"+car1.money+"元/天"+car1.count+"人");
        System.out.println("2.\t"+car2.name+"\t"+car2.money+"元/天"+car2.count+"人");
        System.out.println("3.\t"+car3.name+"\t"+car3.money+"元/天"+car3.count+"人"+car3.height+"噸");
        System.out.println("4.\t"+car4.name+"\t"+car4.money+"元/天"+car4.count+"人");
        System.out.println("5.\t"+car5.name+"\t"+car5.money+"元/天"+car5.height+"噸");
        System.out.println("6.\t"+car6.name+"\t"+car6.money+"元/天"+car6.height+"噸");

        System.out.println("請輸入要租車的數量:");
        int quality = input.nextInt(); //租車數量
        int money = 0;
        int count = 0;
        int height = 0;
        String name1 = ""; //存儲客車名
        String name2 = "";//存儲貨車名
        for (int i = 1; i < quality; i++) {
            System.out.println("請輸入第"+i+"輛車的序號");
            int score = input.nextInt();//租車序號
            switch (score) {
            case 1:
                name1 += car1.name;
                count += car1.count;
                money += car1.money;
                break;
            case 2:
                name1 += car2.name;
                count += car2.count;
                money += car2.money;
                break;
            case 3:
                name1 += car3.name;
                name2 += car3.name;
                count += car3.count;
                money += car3.money;
                height += car3.height;
               break;
            case 4:
               name1 += car4.name;
               money += car4.money;
               count += car4.count;
               break;
            case 5:
               name2 += car5.name;
               money += car5.money;
               height += car5.height;
               break;
            case 6:
               name2 += car6.name;
               money += car6.money;
               height += car6.height;
               break;
            }
        }
        System.out.println("請輸入租車天數");
        int day = input.nextInt(); //租車天數
        System.out.println("您的賬單:");
        System.out.println("**您租載人的車有:");
        System.out.println(name1+"總載人數:"+count+"人");
        System.out.println("***您租載貨的車有:");
        System.out.println(name2+"總載貨量:"+height+"噸");
        System.out.println("***您租了:"+day+"天");
        System.out.println("***租車總價格:"+day*money+"元");
    }else if (rent == 0) {
        System.out.println("系統已停止工作,歡迎您再來!");
    }else {
        System.out.println("您輸入有誤!請重新運行");
    }
}
}

//人
public class PeopleCar extends Car{

String name;
int money;
int count;

public PeopleCar(String string, int i, int j) {
    this.name = string;
    this.money = i;
    this.count = j;
}
}

 //貨和人的車
 public class PeoplegoodCar extends Car {

String name;
int money;
int count;
int height;

public PeoplegoodCar(String string, int i, int j, int k) {
    this.name = string;
    this.money = i;
    this.count = j;
    this.height = k;
}
}

public class GoodCar extends Car {
// 貨車
String name;
int money;
int height;

public GoodCar(String string, int i, int j) {
    this.name = string;
    this.money = i;
    this.height = j;
}
  }

     //父類
 public class Car {
  String name; // 車名
  int money; // 租金
  int count; // 載人數
  int height;//載貨量
}