import?java.util.*;

public?class?Test?{

	public?static?void?main(String[]?args)?{
		//所有車放在這里，可以根據(jù)序號取對應(yīng)的車
		List<Car>?cars?=?new?ArrayList<Car>();
		Car?aodi?=?new?Aodi();
		cars.add(aodi);
		Car?mazida?=?new?Mazida();
		cars.add(mazida);
		Car?pikaxue?=?new?Pikaxue();
		cars.add(pikaxue);
		Car?jinlong?=?new?Jinlong();
		cars.add(jinlong);
		Car?songhuajia?=?new?Songhuajia();
		cars.add(songhuajia);
		Car?yiweike?=?new?Yiweike();
		cars.add(yiweike);
		
		System.out.println("歡迎使用滴滴租車系統(tǒng)"?+?"\n"?+?"您是否要租車：1是?0否");
		Scanner?judge?=?new?Scanner(System.in);
		int?a?=?judge.nextInt();
		if?(a?==?1)?{
			System.out.println("您可租車的類型及價目表"?+?"\n"?+?"序號"?+?"\t"?+?"汽車名稱"?+?"\t"?+?"租金"?+?"\t"?+?"容量");
			aodi.car(1);
			mazida.car(2);
			pikaxue.car(3);
			jinlong.car(4);
			songhuajia.car(5);
			yiweike.car(6);
????????????System.out.println("請輸入你要租汽車的數(shù)量");
????????????Scanner?amount=new?Scanner(System.in);
????????????int?b=amount.nextInt();
			int?c;
			int?allpeople?=?0;
			int?allthing?=?0;
			int?allprice?=?0;
			String?Person?=?"";
			String?Cars?=?"";
????????????for(int?i=1;i<=b;i++){??????????
				do?{
					System.out.println("請輸入第"?+?i?+?"輛車的序號：");
					Scanner?xuhao?=?new?Scanner(System.in);
					c?=?xuhao.nextInt();
				}while(c<1||c>6);
				
				//根據(jù)序號在List中取相應(yīng)的車
				Car?cc?=?cars.get(c-1);
				//如果該車能裝人
				if(cc.people>0){
					allpeople+=cc.people;
					Person?+=?cc.name+"?";
				}
				//如果該車能裝貨
				if(cc.thing>0){
					allthing+=cc.thing;
					Cars?+=?cc.name+"?";
				}
				allprice?+=?cc.price;
????????????}
????????????System.out.println("請輸入要租的天數(shù)：");
????????????Scanner?days=new?Scanner(System.in);
????????????int?d=days.nextInt();
????????????System.out.println("你的賬單"+"\n"+"***可載人的車有："+"\n"+Person+"\t"+"共載人："+allpeople+"人");
????????????System.out.println("***載貨的車有："+"\n"+Cars+"\t"+"共載貨:"+allthing+"噸");
????????????System.out.println("***租車總價格:"+allprice*d+"元");
		}
	}
}
	
	class?Car{
		String?name?=?"";
		int?people?=?0;
		int?thing?=?0;
		float?price?=?0;
		
		public?void?car(int?index){
			System.out.println(index?+?"\t"?+?name?+?"\t"?+?price?+?"\t"?+?people?+?"人"?+?thing?+?"貨");
		}
	}

	class?Aodi?extends?Car{{
		name?=?"奧迪A4";
		people?=?4;
		thing?=?0;
		price?=?500;
	}}
	class?Mazida?extends?Car{{
		name?=?"馬自達6";
		people?=?4;
		thing?=?0;
		price?=?400;
	}}
	class?Pikaxue?extends?Car{{
		name?=?"皮卡雪6";
		people?=?4;
		thing?=?2;
		price?=?450;
	}}
	class?Jinlong?extends?Car{{
		name?=?"金龍";
		people?=?20;
		thing?=?0;
		price?=?800;
	}}
	class?Songhuajia?extends?Car{{
		name?=?"松花江";
		people?=?0;
		thing?=?4;
		price?=?400;
	}}
	class?Yiweike?extends?Car{{
		name?=?"依維柯";
		people?=?20;
		thing?=?0;
		price?=?1000;
	}}

//以奧迪為例

public static class Aodi extends Car {

String name = "奧迪A4"; //車的名字

int people = 4; //容納人數(shù)

int thing = 0; //容納貨物數(shù)量

float price = 500; //價格

@Override

public void car() {

System.out.println("1" + "\t" + name + "\t" + price + "\t" + people + "人" + thing + "貨");

}

}

這樣在選車的時候 ?就可以寫成

if (c == 1) {

allpeople += ((Aodi)test1).getPeople();

allthing += ((Aodi)test1).getThing();

allprice += ((Aodi)test1).getPrice();

Person += ((Aodi)test1).getName();

}