Java實現(xiàn)答答租車系統(tǒng)

更新時間：2019年01月29日 10:44:33 作者：希夏普

這篇文章主要為大家詳細介紹了Java實現(xiàn)答答租車系統(tǒng)，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了Java實現(xiàn)答答租車系統(tǒng)的具體代碼，供大家參考，具體內容如下

項目需求：

基本界面需求：

and:

最后是把賬單打印出來：

個人代碼實現(xiàn)

基本思路：考慮到車輛之間的共性，設置一個父類Car, 子類MannedCar(載人), Truck(載貨)，BothCary(既載人又載貨)，三者繼承父類Car的price, name屬性, getName()方法, 同時重寫getPersonNum, getGoodsNum方法。

Car.java:

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;
  }

}

MannedCar.java:

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;
  }
}

Truck.java:

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;
  }
}

BothCarry.java:

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;
  }
}

系統(tǒng)：

CarSystem.java:

package Car;

import java.util.Scanner;
import java.util.ArrayList;

public class CarSystem {

  private static String goodByeInfo = "歡迎再次使用本系統(tǒng)，再見！"; 
  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("輸入錯誤..End running..");
      System.exit(0);
      break;
    }
  }

  public static void SystemWelcome() {
    System.out.println("歡迎使用答答租車系統(tǒng):");
    System.out.println("您是否要租車: 1-是 0-否");
  }

  public static void getUserInput() {
    int numCarBorrow = 0;
    ArrayList<Car> carList = new ArrayList<Car>(6);
    carList.add(new MannedCar(4,500,"奧迪A4"));
    carList.add(new MannedCar(4,400,"馬自達6"));
    carList.add(new BothCarry(450,4,2,"皮卡雪6"));
    carList.add(new MannedCar(20,800,"金龍"));
    carList.add(new Truck(400,4,"松花江"));
    carList.add(new Truck(1000,20,"依維河"));

    System.out.println("請輸入您要租汽車的數(shù)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("請輸入第" + (i+1) + "輛車的序號:");
      if (sr.hasNext()) {
        carNumList[i] = sr.nextInt();
      }
    }
    System.out.println("請輸入租車天數(shù):");
    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("您的賬單:\n***可載人的車有:");
    System.out.println(manned + "  共載人: " + numOfManned); 
    System.out.println("***載貨的車有:\n" + goods + "  共載貨 : " + numOfGoods + "噸");
    System.out.println("***租車總價格: " + totalCost * dayBorrow + "元");

  }

}

主程序:

package Car;

public class CarSystemTest {

  public static void main(String[] args) {
    // TODO Auto-generated method stub
    CarSystem.beginSystem();
  }

}

運行結果：