public?abstract?class?BasicCar?{

??public?abstract?void?mgr();

??public?int?cash;

??public?String?carName;

}

?

public?class?CarFreight?extends?BasicCar?{
?private?final?int?hNumber;
?public?CarFreight(String?carName,?int?cash,?int?hNumber)?{
??this.carName?=?carName;
??this.hNumber?=?hNumber;
??this.cash?=?cash;
?}
?@Override
?public?void?mgr()?{
??//?TODO?Auto-generated?method?stub
??System.out.println(carName?+?"??"?+?cash?+?"元/天"?+?"??????載貨：?"?+?hNumber?+?"噸");
?}

}

public?class?CarPassenger?extends?BasicCar{
?private?int?pNumber;
?
?public?CarPassenger(String?carName,?int?cash,?int?pNumber){
??this.carName?=?carName;
??this.pNumber?=?pNumber;
??this.cash?=?cash;
?}
?@Override
?public?void?mgr()?{
??//?TODO?Auto-generated?method?stub
??System.out.println(carName?+?"??"?+?cash?+?"元/天"?+?"?????載人：?"?+?pNumber?+?"人");
?}
}

public?class?CarFreightPassenger?extends?BasicCar?{
?private?final?int?hNumber;
?private?final?int?pNumber;
?public?CarFreightPassenger(String?carName,?int?cash,?int?pNumber,?int?hNumber)?{
??this.carName?=?carName;
??this.hNumber?=?hNumber;
??this.pNumber?=?pNumber;
??this.cash?=?cash;
?}
?@Override
?public?void?mgr()?{
??//?TODO?Auto-generated?method?stub
??System.out.println(carName?+?"??"?+?cash?+?"元/天"?+?"?????載人：?"?+?pNumber?+?"人"+"??載貨：?"?+?hNumber?+?"噸");
?}
}

import?java.util.InputMismatchException;
import?java.util.Scanner;
public?class?RentCar?{
?/**
??*?顯示車輛的價目表。
??*?
??*?@param?cars
??*/
?public?static?void?showCarInfo(BasicCar[]?cars)?{
??System.out.println("您可租車的類型及其價目表：");
??System.out.println("序號??汽車名稱????租金??????????????????容量");
??for?(int?i?=?1;?i?<=?cars.length;?i++)?{
???System.out.print(i?+?"??");
???cars[i?-?1].mgr();
??}
?}
?@SuppressWarnings("resource")
?public?static?void?rent(BasicCar[]?cars)?{
??System.out.println("歡迎使用答答租車系統(tǒng)：");
??System.out.println("您是否要租車：?1是?0?否");
??Scanner?scanner?=?new?Scanner(System.in);
??int?isRent?=?0;
??
??//?判斷輸入的值是否為1，0，?包括判斷數(shù)字是否為數(shù)字，否則重新輸入值，?直到輸入的值為0，1；
??try?{
???isRent?=?scanner.nextInt();
??}?catch?(InputMismatchException?e)?{
???isRent?=?3;
??}
??while?(isRent?!=?1?&&?isRent?!=?0)?{
???System.out.println("您的輸入有誤，?請重新輸入：");
???try?{
????scanner?=?new?Scanner(System.in);
????isRent?=?scanner.nextInt();
???}?catch?(InputMismatchException?e)?{
???}
??}
??
??//?如果為0，?則退出；如果不為0，則開始租車流程；
??if?(isRent?==?0)?{
???System.out.println("歡迎下次光臨！");
??}?else?{
???showCarInfo(cars);
???System.out.println("請輸入您要租汽車的數(shù)量:");
???int?carNumber?=?scanner.nextInt();
???int?carCashTotal?=?0;
???for?(int?i?=?0;?i?<?carNumber;?i++)?{
????System.out.println("請輸入第"?+?i?+?1?+?"輛車的序號:");
????carCashTotal?=?carCashTotal?+?cars[scanner.nextInt()?-?1].cash;
???}
???System.out.println("您選了"?+?carNumber?+?"輛車,?分別為：");
???for?(int?j?=?0;?j?<?carNumber;?j++)?{
????cars[j].mgr();
???}
???System.out.println("所需的總金額為："?+?carCashTotal?+?"￥");
??}
?}
?public?static?void?main(String[]?args)?{
??BasicCar[]?cars?=?new?BasicCar[6];
??cars[0]?=?new?CarPassenger("奧迪A4",?500,?4);
??cars[1]?=?new?CarPassenger("馬自達(dá)6",?400,?4);
??cars[2]?=?new?CarFreightPassenger("皮卡雪6",?450,?4,?2);
??cars[3]?=?new?CarPassenger("金龍????????????",?800,?20);
??cars[4]?=?new?CarFreight("松花江???????",?400,?4);
??cars[5]?=?new?CarFreight("依維柯???????",?1000,?40);
??rent(cars);
?}
}