首页手记 java入门第二季答答租车系统

java入门第二季答答租车系统

标签：

Java

没有用到继承、封装、接口、抽象类等
有些繁琐，如有问题希望大家指出

// main 类
package com.sysDada;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        Welc welc = new Welc();
        welc.print();// 打印欢迎界面
        if (welc.check != 0) {//判断是否跳出程序
            return;
        }
        Select s = new Select();// 调用Select
        s.sel();
        System.out.println("谢谢使用，欢迎继续使用！");
        System.out.print("是否继续使用？继续使用请输入 1  输入其他任意值退出：");
        double i = scan.nextDouble();

        while(i==1){

            welc.print();// 打印欢迎界面
            if (welc.check != 0) {
                return;
            }
            // 调用Select
            s.sel();
            System.out.println("谢谢使用，欢迎继续使用！");
            System.out.print("是否继续使用？继续使用请输入 1  输入其他任意值退出：");
            i = scan.nextDouble();
            if(i!=1){
                System.out.println("再见！");
                return;
            }
              }
        System.out.println("再见！");
        }
}

//Welc 类
package com.sysDada;

import java.io.PrintStream;
import java.util.Scanner;

public class Welc {

    Aodi aodi = new Aodi();
    Pika pika = new Pika();
    Mazida mazida = new Mazida();
    Jinlong jinlong = new Jinlong();
    Song song = new Song();
    Yi yi = new Yi();
    int check = 0;//定义一个判断输入是否错误的数
    public void print() {
        PrintStream out = System.out;
        System.out.println("欢迎使用答答租车系统！\n您是否要租车？1 是  0 否");
        Scanner scan = new Scanner(System.in);
        double i = scan.nextDouble();
        //判断输入的数字  选择打印类型
        if (i == 0) {
            out.println("系统已退出！");// 不租车则退出系统
            check++;//判断是否跳出程序的条件成立
            return;

        } else if (i == 1) {
            out.println("您可租用的汽车类型及其价目表：\n序号\t汽车名称\t\t租金\t\t容量");
        } else {
            out.println("输入有误，请重试！");
            check++;//判断是否跳出程序的条件成立
            return;
        }
        out.println(aodi);
        out.println(mazida);
        out.println(pika);
        out.println(jinlong);
        out.println(song);
        out.println(yi);

    }
}

//select类
package com.sysDada;

import java.io.PrintStream;
import java.util.Arrays;
import java.util.Scanner;

import jdk.nashorn.internal.ir.BreakableNode;

public class Select {
    int cargo=0;//声明载货车辆的个数
    int mancar=0;//声明载人车辆的个数
    int sumMoney = 0;// 声明总金额
    int sumVolume1 = 0;// 声明总载人量
    int sumVolume2 = 0;// 声明总载货量
    Aodi aodi = new Aodi();
    Pika pika = new Pika();
    Mazida mazida = new Mazida();
    Jinlong jinlong = new Jinlong();
    Song song = new Song();
    Yi yi = new Yi();
    Scanner scan = new Scanner(System.in);
    public void sel() {
        PrintStream out = System.out;
        out.println("请输入需要租车的数量：");
        int i = scan.nextInt();//i作为需要租车的数量
        if(i<=0){
            out.println("输入有误！");
            return;
        }
       int[] n =new int[i];//定义一个数组保存输入的车型序号
        for (int j = 1; j <= i; j++) {
            String[] Car=new String[i];
            out.print("请选择第" + j + "辆车:");
             n[j-1] = scan.nextInt();   //读取输入的车辆序号
            //  out.println();
            switch (n[j-1]) {        //判断选择的车型
            case 1:
                sumMoney = sumMoney + aodi.money;
                sumVolume1 = sumVolume1 + aodi.volume;
                mancar++;
                break;
            case 2:
                sumMoney = sumMoney + mazida.money;
                sumVolume1 = sumVolume1 + mazida.volume;
                mancar++;
                break;
            case 3:
                sumMoney = sumMoney + pika.money;
                sumVolume1 = sumVolume1 + pika.volume1;
                sumVolume2 = sumVolume2 + pika.volume2;
                mancar++;
                cargo++;
                break;
            case 4:
                sumMoney = sumMoney + jinlong.money;
                sumVolume1 = sumVolume1 + jinlong.volume;
                mancar++;
                break;
            case 5:
                sumMoney = sumMoney + song.money;
                sumVolume2 = sumVolume2 + song.volume2;
                cargo++;
                break;
            case 6:
                sumMoney = sumMoney + yi.money;
                sumVolume2 = sumVolume2 + yi.volume2;
                cargo++;
                break;
            default:
                out.println("输入有误，请重新输入");
                j--;
                break;
            }
            /*if (n[j-1]> 6 || n[j-1]< 1) {
                out.println("输入有误，请重新输入");
                j--;
                continue;*/
            }
        out.println("请输入需要租车的天数：");//输入租车天数
        int day=scan.nextInt();
        if(i<=0){
            out.println("输入有误！");
            return;
        }
        sumMoney=sumMoney*day;   //总金额
        String[] manCar = new String[i];//定义载人汽车的数组
        String[] cagoCar= new String[i];//定义载货汽车的数组
        //给载人汽车数组赋值
        for(int k=0;k<i;k++){   
            switch (n[k]) {
            case 1:
                manCar[k]=aodi.name;
                break;
            case 2:
                manCar[k]=mazida.name;
                break;
            case 3:
                manCar[k]=pika.name;
                break;
            case 4:
                manCar[k]=jinlong.name;
                break;
             default:
                continue;
            }
        }
        //给载货汽车数组赋值
        for(int k=0;k<i;k++){
            switch (n[k]) {
            case 3:
                cagoCar[k]=pika.name;
                break;
            case 5:
                cagoCar[k]=song.name;
                break;
            case 6:
                cagoCar[k]=yi.name;
                break;
             default:
                continue;
            }
        }
        //打印载人汽车
      if(mancar!=0){
        out.print("您的账单：\n载人汽车：");
        for(String car:manCar){
            if(car!=null)//避免输出空值
            out.print(car+" ");
        }
        }else{
            out.println("无载人型汽车");
        }
      out.println();
      //打印载货汽车
      if(cargo!=0){
        out.print("载货汽车：");
        for(String car:cagoCar){
            if(car!=null)
            out.print(car+" ");
        }
      }else{
          out.println("无载货型汽车");
      }
      out.println();
        //out.println(Arrays.toString(n));
        out.println("共"+sumMoney+"元钱\t可载"+sumVolume1+"人\t可载货"+sumVolume2+"吨");
}
}

//奥迪
package com.sysDada;

public class Aodi  {
    public int number=1;
    public  String name="奥迪A4";
    public int money=500;
    public int volume=4;

    @Override
    public String toString() {
        return   number +".\t " + name + "\t\t" + money + "元/天\t\t载人：" +volume+ "人";
    }
}

//马自达
package com.sysDada;

public class Mazida {
    public int number=2;
    public  String name="马自达6";
    public int money=400;
    public int volume=4;
    @Override
    public String toString() {
        return number + ".\t " + name + "\t\t" + money + "元/天\t\t载人：" + volume + "人";
    }
}

//皮卡
package com.sysDada;

public class Pika {
    public int number=3;
    public  String name="皮卡雪6";
    public int money=450;
    public int volume1=4;
    public int volume2=2;
    @Override
    public String toString() {
        return number + ".\t " + name+ "\t\t" + money + "元/天\t\t载人：" + volume1 + "人,载重:"+volume2+"吨";
    }

}

//金龙
package com.sysDada;

public class Jinlong {
    public int number=4;
    public  String name="金龙";
    public int money=800;
    public int volume=20;
    @Override
    public String toString() {
        return number + ".\t " + name + "\t\t" + money + "元/天\t\t载人：" + volume + "人";
    }
}

//松花江
package com.sysDada;

public class Song {
    public int number=5;
    public  String name="松花江";
    public int money=400;
    public int volume2=4;
    @Override
    public String toString() {
        return number + ".\t " + name + "\t\t" + money + "元/天\t\t载货：" + volume2 + "吨";
    }
}

//依维柯
package com.sysDada;

public class Yi {
    public int number=6;
    public  String name="依维柯";
    public int money=1000;
    public int volume2=20;
    @Override
    public String toString() {
        return number + ".\t " + name + "\t\t" + money + "元/天\t\t载货：" + volume2 + "吨";
    }
}

运行结果