Java入门第二季 综合练习 答答租车系统

1. 定义2个接口
   载货接口

package com.xiaomo;

//定义载货的接口
public interface Izaihuo {
public int getZai();
public void setZai(int zaishu);
}

载客接口

package com.xiaomo;
//载客接口
public interface Izairen {
public int getZairen();
public void setZairen(int zairen);
}

 2.定义汽车抽象类，并继承接口

package com.xiaomo;
//定义汽车抽象类属性和方法，并继承接口
public abstract class Care implements Izairen,Izaihuo{
/ 定义汽车类别（父类）的序号、名字和价格； */
public int intNum;
public String careName;
public int careZujin;

//封装属性
public int getIntNum() {
    return intNum;
}
public void setIntNum(int intNum) {
    this.intNum = intNum;
}
public String getCareName() {
    return careName;
}
public void setCareName(String careName) {
    this.careName = careName;
}
public int getCareZujin() {
    return careZujin;
}
public void setCareZujin(int careZujin) {
    this.careZujin = careZujin;
} 

//定义抽象打印类
public abstract void printList();

}

 3 . 定义客车、货车、皮卡具体实现类
客车实现类

package com.xiaomo;

public class KeCare extends Care {

//构造卡车汽车
private int zairen=0;
    public KeCare(int intNum,String careName,int careZujin,int zaiRen) {
        this.setIntNum(intNum);
        this.setCareName(careName);
        this.setCareZujin(careZujin);
        this.setZairen(zaiRen);
    }
@Override
public int getZairen() {
    // TODO Auto-generated method stub
    return zairen;
}

@Override
public void setZairen(int zairen) {
    // TODO Auto-generated method stub
    this.zairen=zairen;
}

@Override
public void printList() {
    // TODO Auto-generated method stub
    System.out.println( getIntNum()+".\t"+getCareName()+"\t"+getCareZujin()+"元/天"+"\t"+
            "载人："+getZairen()+"人"); 
}
@Override
public int getZai() {
    // TODO Auto-generated method stub
    return 0;
}
@Override
public void setZai(int zaishu) {
    // TODO Auto-generated method stub

}

}

货车实现类

package com.xiaomo;

public class HuoCare extends Care{
//构造货车汽车
private int zaishu=0;
public HuoCare(int intNum,String careName,int careZujin,int zaiHuo) {
this.setIntNum(intNum);
this.setCareName(careName);
this.setCareZujin(careZujin);
this.setZai(zaiHuo);
}
@Override
public int getZai() {
// TODO Auto-generated method stub
return zaishu;
}

@Override
public void setZai(int zaishu) {
    // TODO Auto-generated method stub
    this.zaishu=zaishu;
}

@Override
public void printList() {
    // TODO Auto-generated method stub
    System.out.println( getIntNum()+".\t"+getCareName()+"\t"+getCareZujin()+"元/天"+"\t"+"载货："+getZai()+"吨"); 
}
@Override
public int getZairen() {
    // TODO Auto-generated method stub
    return 0;
}
@Override
public void setZairen(int zairen) {
    // TODO Auto-generated method stub

}

}

皮卡实现类

package com.xiaomo;

public class PiCare extends Care{

//构造皮卡汽车
int zairen=0;
int zaishu=0;
public PiCare(int intNum,String careName,int careZujin,int zaiRen,int zaiHuo) {
    this.setIntNum(intNum);
    this.setCareName(careName);
    this.setCareZujin(careZujin);
    this.setZai(zaiHuo);
    this.setZairen(zaiRen);
}
@Override
public int getZairen() {
    // TODO Auto-generated method stub
    return zairen;
}

@Override
public void setZairen(int zairen) {
    // TODO Auto-generated method stub
     this.zairen=zairen;
}

@Override
public int getZai() {
    // TODO Auto-generated method stub
    return zaishu;
}

@Override
public void setZai(int zaishu) {
    // TODO Auto-generated method stub
    this.zaishu=zaishu;
}

//实现care抽象方法
public void printList() {
    // TODO Auto-generated method stub
    System.out.println( getIntNum()+".\t"+getCareName()+"\t"+getCareZujin()+"元/天"+"\t"+
    "载人："+getZairen()+"人"+"载货："+getZai()+"吨"); 
}

}

 4..测试类

package com.xiaomo;
import java.util.Scanner;

public class ceshi {

private static Scanner inpit;

public static void main(String[] args) {
    // TODO Auto-generated method stub
    //实例化汽车类型
    Care[] cares={
            new KeCare(1,"奥迪A4",500,4), 
            new KeCare(2,"马自达6",400,4), 
            new PiCare(3,"皮卡雪6",450,4,2), 
            new KeCare(4,"金龙",800,20), 
            new HuoCare(5,"松花江",400,4), 
            new HuoCare(6,"依维柯",1000,20),
    };
    inpit = new Scanner(System.in); 
    System.out.println("******欢迎使用答答租车系统！！*******");
    System.out.println("\n您是否要租车：1是 0否");
    int num=inpit.nextInt();
    if(num==1){ 
        System.out.println("您可租车的类型及其价目表：\n序号"+"\t"+"汽车名称"+"\t"+"租金"+"\t"+"容量"); 
        for(int i = 0;i<cares.length;i++){
            cares[i].printList();
        }
    }else{
        System.out.println("感谢你使用达达租车系统！！");
    }
    //获取需要租入的车辆数量、序号以及天数； 
    System.out.println("请输入您要租的汽车数量"); 
    num=inpit.nextInt(); 
    int[] selectNum=new int[num]; 
    for(int i=0;i<num;i++){
        int j=i+1;
        System.out.println("请输入第"+j+"辆车的序号："); 
        selectNum[i]=inpit.nextInt();
    }
    System.out.println("请输入你租车时间：");
    int day=inpit.nextInt(); 

     /*
     * 输出可载人车辆的清单及可载人数
     *  作者： Candy07 
        链接：http://www.imooc.com/article/13438
        来源：慕课网;
     */
    System.out.println("您的账单：\n***可载人的车有：");
    int pessengerSum=0;
    for(int i=0;i<num;i++){
        int j=selectNum[i]-1;
        int pessengerNum=cares[j].getZairen();
        if(pessengerNum>0){
            System.out.print(cares[j].getCareName()+"\t");
        }
        pessengerSum+=pessengerNum;
    }
    if(pessengerSum>0){
        System.out.println("共载人："+pessengerSum+"人");
    }else{
        System.out.println("抱歉！您选中的车辆中没有可载人的车辆！");
    }
    /*
     * 输出可载货车辆的清单及可载吨数
     */
    System.out.println("***可载货的车有：");
    double cargoSum=0;
    for(int i=0;i<num;i++){
        int j=selectNum[i]-1;
        int cargoNum=cares[j].getZai();
        if(cargoNum>0){
            System.out.print(cares[j].getCareName()+"\t");
        }
        cargoSum+=cargoNum;
    }
    if(cargoSum>0){
        System.out.println("共载货："+cargoSum+"吨");
    }else{
        System.out.println("抱歉！您选中的车辆中没有可载货的车辆！");
    }
    /*
     * 输出总价款
     */
    double priceSum=0;
    for(int i=0;i<num;i++){
        int j=selectNum[i]-1;
        int priceNum=cares[j].getCareZujin();
        priceSum=priceSum+priceNum*day;
    }
    System.out.println("***租车总价格："+priceSum+"元");
}

}