自己写的QQ抢车位的最快升级办法

汽车类

public class Car implements Comparable {
	//汽车的名字
	private String carName;
	//表示每分钟赚的钱
	private int money;
	//表示汽车的单价
	private long price;
	
	public Car(String carName,int money,long price){
		this.carName = carName;
		this.money = money;
		this.price = price;
	}
	
	//对汽车的性价比排序
	public int compareTo(Object o) {
		Car car = (Car)o;
		//money>car.money按money升序排充
		int result = money>car.money ? 1:(money == car.money ? 0 : -1);
		if(result==0){
			//如果钱赚的相同就看这辆车的价格是否更加便宜
			result = price>car.price ? 1:(price == car.price ? 0 : -1);
		}
		return result;
	}

	public String getCarName() {
		return carName;
	}

	public int getMoney() {
		return money;
	}

	public long getPrice() {
		return price;
	}
}

用户类

public class LangHuA {
	//用户现在剩的钱
	private long totalMoney;
	//用户现在的总钱数包括车也算在内
	private long totalMoneyWithCar;
	
	private Market market;
	//存放我的车
	private ArrayList<Car> myCarList;
	//市场的车
	private TreeSet<Car> carTreeSet;
	
	private static LangHuA langhua;
	
	public LangHuA(){
		myCarList = new ArrayList<Car>();		
		totalMoney = 16000L;
		market = Market.getIntence();
		carTreeSet = market.getCarList();
		totalMoneyWithCar = 16000L;
	}
	
	//是否买车
	public boolean isBuyCar(){
		//如果车的数量等于10就不能再买车了
		if(myCarList.size()==10){
			return false;
		}
		//是否买的起车
		return Market.canYouBuyIt(this.totalMoney);
	}
	
	//买一辆车
	public void buyCar(){
		myCarList.add(carTreeSet.first());
		totalMoney = totalMoney - carTreeSet.first().getPrice();
	}	
	
	//是否以旧换新车
	public boolean isChangeCar(){
		if(myCarList.size()==10){
			//是否能以旧换新
			boolean b = false;
			Car car = myCarList.get(0);	
			Car buycar = null;
			Iterator<Car> it = market.getIterator();
			while(it.hasNext()){
				buycar = (Car) it.next();
				if((buycar.getPrice()<totalMoney+car.getPrice())&&(buycar.getMoney()>car.getMoney())){					
					myCarList.set(0, buycar);				
					totalMoney = totalMoney + car.getPrice() - buycar.getPrice();
					b = true;
					Collections.sort(myCarList);
					break;
				}				
			}
			return b;
		}
		return false;
	}	
	
	//每当12个小时之后结账
	public void Checkout(){
		Iterator<Car> it = myCarList.iterator();
		while(it.hasNext()){
			Car car = (Car) it.next();
			totalMoneyWithCar = totalMoneyWithCar + car.getMoney()*60L*12L;
			totalMoney = totalMoney + car.getMoney()*60L*12L;
		}		 
	}

	public long getTotalMoney() {
		return totalMoney;
	}

	public long getTotalMoneyWithCar() {
		return totalMoneyWithCar;
	}
	
	public String toString(){
		StringBuilder sb = new StringBuilder();
		sb.append("资金:"+this.totalMoney);
		sb.append(" 总资产:"+this.totalMoneyWithCar);
		sb.append(" 车总数:"+this.myCarList.size());
		sb.append(" 所拥有的车:");
		Iterator it = myCarList.iterator();
		while(it.hasNext()){
			sb.append(((Car)it.next()).getCarName()+" ");
		}
		return sb.toString();
	}
}

市场类

package com.langhua.qqgame;

import java.util.Iterator;
import java.util.TreeSet;

public class Market {
	//保存汽车
	private static TreeSet<Car> carList;	
	private static Market market;
	private Market(){
		carList = new TreeSet<Car>();
		//代步车
		carList.add(new Car("二手奥拓", 5, 16000L));
		carList.add(new Car("江南奥拓",5,25000L));
		carList.add(new Car("夏利",6,32000L));
		carList.add(new Car("奇瑞QQ",7,36000L));
		carList.add(new Car("spark乐驰",8,45800L));
		carList.add(new Car("吉利自由舰",9,48000L));
		//普通私家车
		carList.add(new Car("富康",10,62000L));
		carList.add(new Car("标志206",11,78000L));		
		carList.add(new Car("雪铁龙C2",12,79000L));
		carList.add(new Car("名爵3SW",12,79800L));
		carList.add(new Car("桑塔纳",13,80000L));
		carList.add(new Car("POLO",13,91000L));
		carList.add(new Car("福田欧马可",13,98800L));
		carList.add(new Car("别克凯越",14,100000L));
		//精致私家车		
		carList.add(new Car("标致307",15,110000L));
		carList.add(new Car("宝来",15,116000L));
		carList.add(new Car("赛拉图",15,127800L));
		carList.add(new Car("福特福克斯",15,128000L));
		carList.add(new Car("飞度",15,129800L));
		carList.add(new Car("卡罗拉",15,132000L));		
		carList.add(new Car("速腾",15,138000L));
		carList.add(new Car("斯柯达明锐",15,139000L));
		carList.add(new Car("本田CIVIC",15,140000L));
		carList.add(new Car("骐达",15,149800L));	
		//高级私家车
		carList.add(new Car("新毕加索",16,157800L));	
		carList.add(new Car("S-MAX",18,219800L));	
		
		carList.add(new Car("Mini Cooper",20,320000L));	
		carList.add(new Car("奥迪A6",24,620000L));	
		carList.add(new Car("宝马730",26,1080000L));	
		carList.add(new Car("保时捷911",28,1500000L));	
		carList.add(new Car("玛莎拉蒂",30,1790000L));	
		carList.add(new Car("阿斯顿马丁",32,3620000L));	
		carList.add(new Car("迈巴赫62",34,6180000L));	
		carList.add(new Car("帕加尼",36,12990000L));	
		carList.add(new Car("雅致728",38,13880000L));	
		carList.add(new Car("布加迪威龙",40,25000000L));	
		carList.add(new Car("布加迪威航",50,43000000L));		
	}
	
	//获得市场上最便宜的车
	public static Car getCheapestCar(){		
		return carList.first();
	}
	
	//根据用户手上的钱看能不能买下一辆书
	public static boolean canYouBuyIt(long price){
		if(price >= Market.getCheapestCar().getPrice()){
			return true;
		}
		return false;
	}
	
	
	public static Market getIntence(){
		if(market==null){
			market = new Market();
		}
		return market;
	}	
	
	public TreeSet<Car> getCarList() {
		return carList;
	}
	
	public Iterator<Car> getIterator(){
		TreeSet<Car> treeSet = market.getCarList();
		Iterator<Car> it = treeSet.iterator();
		return it;
	}
}

最后的测试

public class ShowTime {
	public static void main(String[] args) {
		Market market = Market.getIntence();
		LangHuA langhua = new LangHuA();
		Date date = new Date();
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		long times = date.getTime();
		int i = 0;
		while(i<1030){			
			//先结一次账
			langhua.Checkout();
			//看否能买一辆车
			while(langhua.isBuyCar()){
				langhua.buyCar();
			}
			//是否能以旧换新
			while(langhua.isChangeCar()){
				
			}
			date = new Date(times+i*60L*60L*12L*1000L);
			System.out.println("时间："+sdf.format(date)+" "+langhua);
			i++;
		}
	}

}

最后结论：如果从现在开始玩
要到2010-07-22 07:08:29 资金:174240 总资产:250174240
的时候我将拥有十辆布加迪威龙