java多线程模拟停车位问题

/**
 * 
 */
package Synchronized;

/**
 * @author libin
 *
 */
public class CarTest {
	public static void main(String[] args) {
		CarSet car1 = new CarSet();
		Thread t1 = new InThread("1",car1);
		Thread t2 = new InThread("2",car1);
		Thread t3 = new InThread("3",car1);
		Thread t4 = new OutThread("4",car1);
		Thread t5 = new OutThread("5",car1);
		t1.start();
		t2.start();
		t3.start();
		t4.start();
		t5.start();
	}

}
class InThread extends Thread  //入库线程
{
	String name;
	CarSet car;
	public InThread(){}
	public InThread(String name,CarSet car)
	{
		super(name);
		this.car = car;
	}
	public void run()
	{
		car.CarIn();
	}
}
class OutThread extends Thread
{
	String name;
	CarSet carSet;
	public OutThread(){}
	public OutThread(String name,CarSet carSet)
	{
		super(name);
		this.carSet = carSet;
	}
	public void run()
	{
		carSet.CarOut();
	}
}

class CarSet
{
	//String carName;
	private boolean[] place = new boolean[3];
	public CarSet(){}
//	public CarSet(String carSetName)
//	{
//		this.carName = carSetName;
//	}
	public synchronized void CarIn()
	{
		try
		{
			if(place[0]&&place[1]&&place[2])
			{
				System.out.println("车位已满，请等待。");
				wait();
			}
			for(int i = 0; i < 3; i++)
			{
				if(place[i] == false)//车位空，可以入库
				{
					System.out.println(Thread.currentThread().getName()+"可以入"+i+"号库");
					place[i] = true;
					notifyAll();
					break;
				}
				
			}
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		
	}
	public synchronized void CarOut()
	{
		try
		{
			if(!(place[0]||place[1]||place[2]))
			{
				wait();
			}
			for(int i = 0; i < 3; i++)
			{
				if(place[i] == true)//车在库内，可以出库
				{
					System.out.println(Thread.currentThread().getName()+"可以从"+i+"号库出库");
					place[i] = false;
					notifyAll();
					break;
				}
			}
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		
	}
}