关于一个线程的问题

[黑煤碳]

代码:

public class Zst{
	public static void main(String[] args){
		Sc a=new Sc();
		XiaoShou aa=new XiaoShou(a);
		ShenChan bb=new ShenChan(a);
		
		Thread a1=new Thread(aa);
		a1.start();
		Thread b1=new Thread(bb);
		b1.start();
	}
}

public class XiaoShou implements Runnable{
	private Sc a=null;
	public XiaoShou(Sc a){
		this.a=a;
	}
	public void run(){
		for(int i=0;i<26;i++){
			a.ChuShou();
		}
	}
}

public class ShenChan implements Runnable{
	private Sc a=null;
	public ShenChan(Sc a){
		this.a=a;
	}
	public void run(){
		char aa;
		for(int i=0;i<26;i++){
			aa=(char)('A'+i);
			a.ShengChan(aa);
		}
	}
}

public class Sc{
	private char[] rl=new char[8];
	private int wp=0;
	public synchronized void ShengChan(char aa){
		while(wp==rl.length){
			try{
				this.wait();
			}
			catch(Exception e){
				
			}
		}
		this.notify();
		rl[wp]=aa; ++wp;
		System.out.println("生产了第"+wp+"个物品\t物品名是"+aa);
	}
	public synchronized void ChuShou(){
		char aa;
		while(wp==0){
			try{
				this.wait();
			}
			catch(Exception e){}
		}
		this.notify();
		aa=rl[wp-1];
		System.out.println("出售了第"+wp+"个物品\t物品名是"+aa);
		--wp;
	}
}

问题：线程不会出现那种抢资源的效果

[逗比123号]

加个sleep

[黑煤碳]

求解啊!!!!!!!!!!!!!!!!

[什么都不能]

同步描述符方法会次序执行。

[santan]

synchronized