参考大家的基础上，写的滴滴租车程序-原创手记-慕课网

package com.i;//父类，我这里的父类设置的不好
public class Didi {
private String name;//车名
private int ren;//车载人数
private int huo; //车载货物
private int rentn;//每辆车的租金

}

package com.i;
//为每个车型设置子类
public class Aodi extends Didi {
private String name;
private int rentn;
private int ren;
private int huo;
public Aodi(String name, int rentn, int ren) {
super();
this.name = name;
this.rentn = rentn;
this.ren = ren;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getRen() {
return ren;
}
public void setRen(int ren) {
this.ren = ren;
}
public int getHuo() {
return huo;
}
public void setHuo(int huo) {
this.huo = huo;
}
public int getRentn() {
return rentn;
}
public void setRentn(int rentn) {
this.rentn = rentn;
}
}

package com.i;

public class Jinlong extends Didi {
private String name;
private int ren;
private int huo;
private int rentn;
public Jinlong(String name, int rentn, int ren) {
super();
this.name = name;
this.ren = ren;
this.rentn = rentn;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getRen() {
return ren;
}
public void setRen(int ren) {
this.ren = ren;
}
public int getHuo() {
return huo;
}
public void setHuo(int huo) {
this.huo = huo;
}
public int getRentn() {
return rentn;
}
public void setRentn(int rentn) {
this.rentn = rentn;
}
}
package com.i;
public class Mazida extends Didi {
private String name;
private int ren;
private int huo;
private int rentn;
public Mazida(String name, int rentn, int ren) {
super();
this.name = name;
this.rentn = rentn;
this.ren = ren;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getRen() {
return ren;
}
public void setRen(int ren) {
this.ren = ren;
}
public int getHuo() {
return huo;
}
public void setHuo(int huo) {
this.huo = huo;
}
public int getRentn() {
return rentn;
}
public void setRentn(int rentn) {
this.rentn = rentn;
}
}

package com.i;

public class Pikaxue extends Didi {
private String name;
private int ren;
private int huo;
private int rentn;

public Pikaxue(String name, int rentn, int ren, int huo) {
    super();
    this.name = name;
    this.ren = ren;
    this.huo = huo;
    this.rentn = rentn;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public int getRen() {
    return ren;
}
public void setRen(int ren) {
    this.ren = ren;
}
public int getHuo() {
    return huo;
}
public void setHuo(int huo) {
    this.huo = huo;
}
public int getRentn() {
    return rentn;
}
public void setRentn(int rentn) {
    this.rentn = rentn;
}

}

package com.i;

public class Songhuajiang extends Didi {
private String name;
private int ren;
private int huo;
private int rentn;

public Songhuajiang(String name,  int rentn,int huo) {
    super();
    this.name = name;
    this.huo = huo;
    this.rentn = rentn;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public int getRen() {
    return ren;
}
public void setRen(int ren) {
    this.ren = ren;
}
public int getHuo() {
    return huo;
}
public void setHuo(int huo) {
    this.huo = huo;
}
public int getRentn() {
    return rentn;
}
public void setRentn(int rentn) {
    this.rentn = rentn;
}

}
package com.i;

public class Yiweike extends Didi {
private String name;
private int ren;
private int huo;
private int rentn;

public Yiweike(String name, int rentn,int huo) {
    super();
    this.name = name;
    this.huo = huo;
    this.rentn = rentn;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public int getRen() {
    return ren;
}
public void setRen(int ren) {
    this.ren = ren;
}
public int getHuo() {
    return huo;
}
public void setHuo(int huo) {
    this.huo = huo;
}
public int getRentn() {
    return rentn;
}
public void setRentn(int rentn) {
    this.rentn = rentn;
}

}

package com.i;//入口类。
import java.util.Scanner;
public class Test {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    Go show=new Go();
    System.out.println("请问您是否需要租车？"+"\n1是  0否");
    do{
    Scanner sc=new Scanner(System.in);
    int sc1=sc.nextInt();
    if(sc1==1){
        show.Gohappy(); 
        break;
    }else if(sc1==0){
        System.out.println("感谢您的使用，祝您生活愉快");
        break;
    }else{
        System.out.println("输入错误，请重新输入");
        continue;
    }
    }while(true);//这是借鉴幕友的，当输入错误的时候可以重新输入。      
}

}
//Go功能实现类
package com.i;
import java.util.Arrays;
import java.util.Scanner;
public class Go {
public void Gohappy(){
Aodi a1=new Aodi("奥迪A4", 500,4);
Mazida a2=new Mazida("马自达",400,4);
Pikaxue a3=new Pikaxue("皮雪卡",450,4,2);
Jinlong a4=new Jinlong("金龙",800,20);
Songhuajiang a5=new Songhuajiang("松花江",400,4);
Yiweike a6=new Yiweike("依维柯",1000,20);
Didi car[]={a1,a2,a3,a4,a5,a6};

    System.out.println("您可租车的类型及价目表:"+"\n序号      汽车名称    租金      容量");      
    System.out.println("1.  "+a1.getName()+"    "+a1.getRentn()+"元/天    "+"载人："+a1.getRen()+"人");
    System.out.println("2.  "+a2.getName()+"    "+a2.getRentn()+"元/天    "+"载人："+a2.getRen()+"人");
    System.out.println("3.  "+a3.getName()+"    "+a3.getRentn()+"元/天    "+"载人："+a3.getRen()+"人"+"载货："+a3.getHuo()+"吨");
    System.out.println("4.  "+a4.getName()+"    "+a4.getRentn()+"元/天    "+"载人："+a4.getRen()+"人");
    System.out.println("5.  "+a5.getName()+"    "+a5.getRentn()+"元/天    "+"载货："+a5.getHuo()+"吨");
    System.out.println("6.  "+a6.getName()+"    "+a6.getRentn()+"元/天    "+"载货："+a6.getHuo()+"吨");
    System.out.println("请输入您要租汽车的数量：");
    Scanner sc2=new Scanner(System.in);
    int num=sc2.nextInt();  
    int sumMoney=0;//总价格
    int dayMoney=0;//每天的价格
    int sumHuo=0;//能载货的车的数量
    int sumRen=0;//能载人的车的数量
    int zairennum=0;//每辆车可以载人的数量
    int zaihuonum=0;//每辆车可以载货的重量
    String[] zairen=new String[num];//存放载人的车的车型名称
    String[] zaihuo=new String[num];//存放可以载货的车的名称
    for(int i=1;i<=num;i++){
        System.out.println("请输入第"+i+"辆车的序号：");
        Scanner sc3=new Scanner(System.in);
        int n=sc3.nextInt();
        if(n>=1&&n<=6){
            switch(n){
            case 1:
                dayMoney+=a1.getRentn();
                sumRen+=a1.getRen();
                zairennum++;
                zairen[zairennum-1]=a1.getName();
                break;
            case 2:
                dayMoney+=a2.getRentn();
                sumRen+=a2.getRen();
                zairennum++;
                zairen[zairennum-1]=a2.getName();
                break;
            case 3:
                dayMoney+=a3.getRentn();
                sumRen+=a3.getRen();
                sumHuo+=a3.getHuo();
                zairennum++;
                zaihuonum++;
                zairen[zairennum-1]=a3.getName();
                zaihuo[zaihuonum-1]=a3.getName();
                break;
            case 4:
                dayMoney+=a4.getRentn();
                sumRen+=a4.getRen();
                zairennum++;
                zairen[zairennum-1]=a4.getName();
                break;
            case 5:
                dayMoney+=a5.getRentn();
                sumRen+=a5.getHuo();
                zaihuonum++;
                zaihuo[zaihuonum-1]=a5.getName();
                break;
            case 6:
                dayMoney+=a6.getRentn();
                sumRen+=a6.getHuo();
                zaihuonum++;
                zaihuo[zaihuonum-1]=a6.getName();                   
                break;          
            }               
        }                   
    }
    System.out.println("请输入租车天数：");
    Scanner sc4=new Scanner(System.in);
    int daynum=sc4.nextInt();
    sumMoney=dayMoney*daynum;
    System.out.println("您的账单：");
    System.out.println("***可载人的车有：");
    for(String haha:zairen){
        if(haha==null){continue;}else{
        System.out.print(haha+" ");}
    }
    System.out.print("  共载人："+sumRen+"人");
    System.out.println();
    System.out.println("***载货的车有：");
    for(String hana:zaihuo){
        if(hana==null){continue;}else{
        System.out.print(hana+" ");}
    }
    System.out.println("    共载货："+sumHuo+"吨");
    System.out.println("总价格为："+sumMoney+"元");

}

}

参考大家的基础上，写的滴滴租车程序原创