總共5個類：

第1個類：Car

package DaDaRentCar;

//父類

public class Car {

String name; //車名

int money; //租金

int count; //載人數

int height; //載貨量

}

第2個類：goodCar

package DaDaRentCar;

//只能載貨的車

public class goodCar extends Car {

public goodCar(String string, int i, int j) {

// TODO Auto-generated constructor stub

this.name=string;

this.money=i;

this.height=j;

}

}

第3個類：peopleCar

package DaDaRentCar;

//只能載人的車

public class peopleCar extends Car {

public peopleCar(String string, int i, int j) {

// TODO Auto-generated constructor stub

this.name=string;

this.money=i;

this.count=j;

}

}

第4個類：peoplegoodCar

package DaDaRentCar;

//又能載人又能載貨的車

public class peoplegoodCar extends Car {

public peoplegoodCar(String String, int i, int j, int k) {

// TODO Auto-generated constructor stub

this.name=String;

this.money=i;

this.count=j;

this.height=k;

}

}

第5個類：test

package DaDaRentCar;

import java.util.*;

public class test {

public static void main(String[] args) {

peopleCar car1 = new peopleCar("奧迪A4 ",500,4);

peopleCar car2 = new peopleCar("馬自達6 ",400,4);

peoplegoodCar car3 = new peoplegoodCar("皮卡雪6 ",450,4,2);

peopleCar car4 = new peopleCar("金龍 ",800,20);

goodCar car5 = new goodCar("松花江 ",400,4);

goodCar car6 = new goodCar("依維柯 ",1000,20);

System.out.println("歡迎使用達達租車系統：");

System.out.println("您是否要租車：1是 0否");

Scanner input = new Scanner(System.in);

int rent = input.nextInt();

if(rent==1){

System.out.println("您可租車的類型及其價目表:");

System.out.println("序號\t汽車名稱\t 租金\t 容量");

System.out.println("1.\t"+car1.name+"\t"+car1.money+"元/天 "+car1.count+"人");

System.out.println("2.\t"+car2.name+"\t"+car2.money+"元/天 "+car2.count+"人");

System.out.println("3.\t"+car3.name+"\t"+car3.money+"元/天 "+car3.count+"人"+"\t"+car3.height+"噸");

System.out.println("4.\t"+car4.name+"\t"+car4.money+"元/天 "+car4.count+"人");

System.out.println("5.\t"+car5.name+"\t"+car5.money+"元/天 "+car5.height+"噸");

System.out.println("6.\t"+car6.name+"\t"+car6.money+"元/天 "+car6.height+"噸");

System.out.println("請輸入要租車的數量：");

int quality = input.nextInt();//租車數量

int money=0;

int height=0;

int count=0;

String name1="";//存儲客車名

String name2="";//存儲貨車名

for(int i=1;i<=quality;i++){

System.out.println("請輸入第"+i+"輛車的序號");

int score = input.nextInt();//租車序號

switch(score){

case 1:

name1+=car1.name;

money += car1.money;

count += car1.count;

break;

case 2:

name1+=car2.name;

money+=car2.money;

count+=car2.count;

break;

case 3:

name1+=car3.name;

name2+=car3.name;

money+=car3.money;

count+=car3.count;

height+=car3.height;

break;

case 4:

name1+=car4.name;

money+=car4.money;

count+=car4.count;

break;

case 5:

name2+=car5.name;

money+=car5.money;

height+=car5.height;

break;

case 6:

name2+=car6.name;

money+=car6.money;

height+=car6.height;

break;

}

}

System.out.println("請輸入租車天數");

int day = input.nextInt();//租車天數

System.out.println("您的賬單：");

System.out.println("***您租載人的車有：");

System.out.println(name1+"總載人數："+count+"人");

System.out.println("***您租載貨的車有：");

System.out.println(name2+"總載貨量："+height+"噸");

System.out.println("***您租了："+day+"天");

System.out.println("***租車總價格："+day*money+"元");

} else if(rent==0){

System.out.println("系統已停止工作，歡迎您再來！");

}else{

System.out.println("您輸入有誤！請重新運行");

}

}

}

總結

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