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package?com.company.Pojo;

public?class?Car?{//汽車類父類
????protected?int?id;//汽車編號
????protected?String?brand;//品牌
????protected?double?price;//租用價格

????public?int?getId()?{
????????return?id;
????}

????public?void?setId(int?id)?{
????????this.id?=?id;
????}

????public?String?getBrand()?{
????????return?brand;
????}

????public?void?setBrand(String?brand)?{
????????this.brand?=?brand;
????}

????public?double?getPrice()?{
????????return?price;
????}

????public?void?setPrice(double?price)?{
????????this.price?=?price;
????}

????public?void?show(){
????System.out.println("汽車是交通工具有運輸的功能");
}


}
package?com.company.Pojo;
//???
public?class?PassengerCar?extends?Car?{
????protected?int?pc;//載客量

????public?int?getPc()?{
????????return?pc;
????}

????public?void?setPc(int?pc)?{
????????this.pc?=?pc;
????}

????public?PassengerCar(int?id,String?brand,?double?price,?int?pc)?{
????????this.id=id;
????????this.brand=?brand;
????????this.price=price;
????????this.pc=pc;

????}
????public?void?show(){
????????System.out.println(id+"\t"+brand+"\t"+price+"元/天"+"\t載客:"+pc+"人");
????}

}
package?com.company.Pojo;

public?class?PickUpCar?extends?Car{
????private?int?pc;//?????
????private?int?lc;//?????

????public?int?getPc()?{
????????return?pc;
????}

????public?void?setPc(int?pc)?{
????????this.pc?=?pc;
????}

????public?int?getLc()?{
????????return?lc;
????}

????public?void?setLc(int?lc)?{
????????this.lc?=?lc;
????}
????//?вι?????
????public?PickUpCar(int?id,String?brand,?double?price,?int?pc,int?lc){
????????this.id=id;
????????this.brand=brand;
????????this.price=price;
????????this.pc=pc;
????????this.lc=lc;
????}

????public?void?show(){
????????System.out.println(id+"\t"+brand+"\t"+price+"元/天"+"\t載客:"+pc+"人"+"\t載貨:"+lc+"噸");

????}
}
package?com.company.Pojo;

import?java.util.Scanner;

public?class?Run?{
????double?count=0.0;//租用單個品牌的費用
????double?sum?=?0.0;//計算租車總金額
????int?day?=?0;//租用天數
????int?num?=?0;//租用數量
????Car[]?car?=?{
????????????new?PassengerCar(1,?"???蘭博基尼雷文頓",?5000,?5),
????????????new?PassengerCar(2,?"?雙層多麗蘭大巴車",?1000,?50),
????????????new?TruckCar(3,?"???多利卡中型貨車",?500,?15),
????????????new?TruckCar(4,?"?東風雪鐵龍大貨車",?1000,?50),
????????????new?PickUpCar(5,?"??皮卡雪皮卡車",?200,?4,?5)
????};

????public?void?run()?{
????????System.out.println("歡迎使用噠噠租車系統");
????????System.out.println("請問您是否要租用車輛:?1是?0否");
????????Scanner?input?=?new?Scanner(System.in);
????????int?select?=?input.nextInt();//是否要租車
????????if?(!(select?==?0?||?select?==?1))?{
????????????System.out.println("輸入錯誤系統自動退出");
????????????System.exit(0);
????????}?else?if?(select?==?0)?{
????????????System.out.println("那么你是來搞笑的嗎？");
????????????System.exit(0);
????????}?else?{
????????????System.out.println("感謝您使用我們的租車系統請問您需要租什么樣的車呢這是我們的汽車類型以及價位表：");
????????}
????????System.out.println("序號\t汽車品牌\t\t\t租金\t容量");
????????for?(Car?car1?:?car)?{
????????????car1.show();
????????}
????????System.out.println("請輸入您要租車的序號");
????????int?select1?=?input.nextInt();//輸入車輛id
????????if?(!(select1?>?0?&&?select1?<=?5))?{
????????????System.out.println("您輸入的序號有誤系統自動退出");
????????????System.exit(0);
????????}?else?{
????????????System.out.println("您要租的車輛為:");
????????????for?(int?i?=?0;?i?<?car.length;?i++)?{
????????????????if?(i?==?select1?-?1)?{
????????????????????car[i].show();
????????????????}
????????????}
????????????System.out.println("請問您需要租用的汽車數量？");
????????????int?select2?=?input.nextInt();//汽車數量
????????????if?(!(select2?>?0?&&?select2?<?50))?{
????????????????System.out.println("您輸入的輛數有誤系統自動退出");
????????????????System.exit(0);
????????????}?else?{
????????????????num?=?select2;
????????????}
????????????System.out.println("請問您需要租用多長時間呢？");
????????????int?select3?=?input.nextInt();//租車時間
????????????if?(!(select3?>?0?||?select3?<?50))?{
????????????????System.out.println("您輸入的天數有誤系統自動退出");
????????????}?else?{
????????????????day?=?select3;
????????????}
????????????count?=?car[select1?-?1].price?*?day?*?num;
????????????sum+=count;
????????????System.out.println("您的目前的租車金額為:"+sum);
????????????System.out.println("如果您還需要繼續租用其他車輛請繼續輸入對應的序號,如果您已經完成租車請輸入8為您結算租車金額");
????????????int?select4?=?input.nextInt();
????????????if?(select4?==?8)?{
????????????????System.out.println("您租的車的品牌為:"?+?car[select1?-?1].brand
????????????????????????+?"租車天數為:"?+?day?+?"天"?+?"租車數量為:"?+?num?+?"輛"?+?"租車費用為:"?+?count?+?"元");
????????????????System.exit(0);
????????????}?else?if?(!(select4?>?0?||?select4?<=?5))?{
????????????????System.out.println("您的輸入不合法系統自動退出");
????????????????System.exit(0);
????????????}?else?{
????????????????System.out.println("您還要租的車輛為:");
????????????????for?(int?j?=?0;?j?<?car.length;?j++)?{
????????????????????if?(select4?-?1?==?j)?{
????????????????????????car[j].show();
????????????????????}
????????????????}
????????????}
????????????System.out.println("請問您需要租用的汽車數量？");
????????????int?select5?=?input.nextInt();
????????????if?(!(select5?>?0?&&?select5?<?50))?{
????????????????System.out.println("您輸入的輛數有誤系統自動退出");
????????????????System.exit(0);
????????????}?else?{
????????????????num?=?select5;
????????????}
????????????System.out.println("請問您需要租用多長時間呢？");
????????????int?select6?=?input.nextInt();
????????????if?(!(select6?>?0?||?select6?<50))?{
????????????????System.out.println("您輸入的天數有誤系統自動退出");
????????????}?else?{
????????????????day?=?select6;
????????????}
?????????????count=?car[select4?-?1].price?*?day?*?num;
????????????sum=count+sum;
????????????System.out.println("如果您已經完成租車請輸入8為您結算租車金額");
????????????int?select7?=?input.nextInt();
????????????if?(select7?==?8)?{
????????????????System.out.println("您租的車的品牌為:"?+?car[select4?-?1].brand?+?"租車天數為:"?+?day?+?"天"?+?"租車數量為:"?+?num?+?"輛"?+?"總共需要支付金額為:"?+?count?+?"元");

????????????????System.out.println("您總共需要支付的租車費用為"+sum+"感謝您的惠顧謝謝光臨");
????????????}
????????}
????}

}
package?com.company.Pojo;
//貨車
public?class?TruckCar?extends?Car?{
????private?int?lc;//載貨量

????public?int?getLc()?{
????????return?lc;
????}

????public?void?setLc(int?lc)?{
????????this.lc?=?lc;
????}

????//有參構造函數
????public?TruckCar(int?id,?String?brand,?double?price,?int?lc)?{
????????this.id?=?id;
????????this.brand?=?brand;
????????this.price?=?price;
????????this.lc?=?lc;
????}
????????//汽車可以運輸貨物
????????public?void?show(){
????????????System.out.println(id?+?"\t"?+?brand?+?"\t"?+?price?+?"元/天"?+?"\t載貨:"?+?lc?+?"噸");
????????}

}
package?com.company;
import?com.company.Pojo.Car;
import?com.company.Pojo.PassengerCar;
import?com.company.Pojo.Run;

import?java.util.Scanner;

public?class?Test?{

????public?static?void?main(String[]?args)?{
????????Run?r=new?Run();
????????r.run();


????}
}


正在回答

4 回答

這個程序后面重了，感覺


0 回復 有任何疑惑可以回復我~

很強，好多教的都用到了



0 回復 有任何疑惑可以回復我~ 
for?(Car?car1?:?car)?{
????????????car1.show();
????????}

能解答一下這句語句嗎？不是很懂這個for是怎么用的？

1 回復 有任何疑惑可以回復我~
#1

禤三三

遍歷，類似數組遍歷
2019-10-05 回復 有任何疑惑可以回復我~
#2

颯沐_Samuel

for each 一種遍歷方式，表示把car數組中的每個元素拿出來，用臨時變量car1指向該元素，并使用show方法
2019-12-05 回復 有任何疑惑可以回復我~


運行結果如下圖

http://img1.sycdn.imooc.com//5d73a20e0001ee3308210480.jpg

http://img1.sycdn.imooc.com//5d73a20e00012b6d08940301.jpg


3 回復 有任何疑惑可以回復我~

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