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JAVA入门第二季 租车系统练习

标签:
Java

花了4天才搞定!第一次啊,我的思路是,汽车是个抽象的父类拥有基本的属性
2个接口,一个载人,一个载货;然后是3个子类,一个是客车继承父类汽车+载人接口;一个是货车继承父类汽车+载货接口;一个是皮卡继承父类+载人+载货2个接口;
代码如下:
父类汽车:
/*

  • 车辆是个抽象类,
    */
    package com.zuche;

public abstract class Car {
public int Num ;// 车辆编号
public String name; //车辆名字
public double price;// 车辆租金

}


2个接口:
package com.zuche;
//车辆载货属性的接口
public interface Cargo {
//载货量属性
public double catgoNum = 0;
}


package com.zuche;
//车辆载人属性的接口
public interface CarryPeople {
public int carry= 0 ;
}


3个子类:
package com.zuche;
//客车属于车具有载人属性
public class Passengercar extends Car implements CarryPeople {
public void passGercar(int Num ,String name,double price,int carry){
System.out.println(Num+". "+name+" "+price+"元/天 ,载人:"+carry+"人");

}

}


package com.zuche;
//皮卡属于车 具有载人和载货的属性
public class Pickup extends Car implements Cargo, CarryPeople {
public void pickup(int Num ,String name,double price,int carry,double cargoNum){
System.out.println(Num+". "+name+" "+price+"元/天 ,载人:"+carry+"人,载货:"+cargoNum+"吨");
}

}


package com.zuche;
//火车属于车具有载货的属性
public class Truck extends Car implements Cargo {
public void truck(int Num ,String name,double price,double catgoNum){
System.out.println(Num+". "+name+" "+price+"元/天 ,载货:"+catgoNum+"吨");
}

}


主程序:
package com.zuche;
import java.util.Scanner;
import java.util.*;
public class Zuchexitong {

public static void main(String[] args) {
    System.out.println("欢迎使用嗒嗒租车系统:");
    System.out.println("您是否要租车请按:1是,0否");
    Scanner input = new Scanner(System.in);
    int i = input.nextInt();
    if(i == 1){
        System.out.println("您可租车的类型及其价目表:");
        System.out.print("序号   汽车名称     租金 ");
        System.out.println("                    容量");
        // TODO 自动生成的方法存根
        Passengercar Audi = new Passengercar();
        Audi.passGercar(1,"奥迪A4",500,5);
        Passengercar MzDa = new Passengercar();
        MzDa.passGercar(2,"马自达6",400,5);
        Pickup piku = new Pickup();
        piku.pickup(3,"皮卡雪6",450,5,2);
        Passengercar Jinlong = new Passengercar();
        Jinlong.passGercar(4, "金龙    ", 800, 20);
        Truck SongHJ = new Truck();
        SongHJ.truck(5, "松花江  ", 400, 4);
        Truck YiWeKe = new Truck();
        YiWeKe.truck(6, "依维柯  ", 1000, 20);
        System.out.println("请输入您要的汽车数量:");
        Scanner jnput = new Scanner(System.in);
        int j = jnput.nextInt();
        int[] nums =new int[j];
        int k=0;
        int f =1;

        do{
            System.out.println("请输入第"+f+"辆车的序号");
            Scanner knput = new Scanner(System.in);
            nums[k]=knput.nextInt();
            if(nums[k]<7&&nums[k]>0){
                f++;
                k++;
            }else{
                System.out.println("请重新输入:");
                System.out.println("请输入第"+f+"辆车的序号");
                Scanner rnput = new Scanner(System.in);
                nums[k]=rnput.nextInt();
                f++;k++;
            }
        }while(k<j);
        System.out.println("请输入租车天数:");
        Scanner day = new Scanner(System.in);
        int days = day.nextInt();
        System.out.println("您的账单:");
        System.out.println("***可载人的车有:");
        int one=0,two =0, three =0,four =0,fife =0,six = 0;
        for(int l=0;l<k;l++){
            switch(nums[l]){
            case 1 :
                one++;
                break;
            case 2 :
                two++;
                break;
            case 3:
                three++;
                break;
            case 4:
                four++;
                break;
            case 5:
                fife++;
                break;
            case 6:
                six++;
                break;
            }
        }
        if(one>0)
            System.out.print("\t奥迪A4 X"+one);
        if(two>0)
            System.out.print("\t马自达  X"+two);
        if(three>0)
            System.out.print("\t皮卡雪  X"+three);
        if(four>0)
            System.out.print("\t金龙 X"+four);
        int people= (one+two+three)*5+four*20;
        System.out.println("\t共载人数为:"+people+"人");

        System.out.println("***可载货的车有:");
        if(three>0)
            System.out.print("\t皮卡雪  X"+three);
        if(fife>0)
            System.out.print("\t松花江 X"+fife);
        if(six>0)
            System.out.print("\t松花江 X"+six);
        int dun =three*2+fife*4+six*20;
        System.out.println("\t共载货:"+dun+"吨");
        int Price= (one*500+two*400+three*450+four*800+fife*400+six*1000)*days;
        System.out.println("***租车总价格:"+Price+"元,共"+days+"天。");
        System.out.println("******谢谢惠顾!******");
        }else System.out.println("欢迎下次再来!");

    }

}

运行结果
图片描述

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