线程之notify和wait

作者: wilsoncai 分类: 多线程 发布时间: 2018-01-06 00:38
public class MyThreadPrinter2 implements Runnable
{

    private final String name;
    private final Object prev;
    private final Object self;

    private MyThreadPrinter2(String name, Object prev, Object self)
    {
        this.name = name;
        this.prev = prev;
        this.self = self;
    }

    @Override
    public void run()
    {
        int count = 10;
        while (count > 0)
        {
            synchronized (prev)
            {
                synchronized (self)
                {
                    System.out.print(name);
                    count--;

                    self.notify();
                }
                try
                {
                    prev.wait();
                }
                catch (InterruptedException e)
                {
                    e.printStackTrace();
                }
            }

        }
    }

    public static void main(String[] args) throws Exception
    {
        Object a = new Object();
        Object b = new Object();
        Object c = new Object();
        MyThreadPrinter2 pa = new MyThreadPrinter2("A", c, a);
        MyThreadPrinter2 pb = new MyThreadPrinter2("B", a, b);
        MyThreadPrinter2 pc = new MyThreadPrinter2("C", b, c);

        new Thread(pa).start();
        new Thread(pb).start();
        new Thread(pc).start();
    }
}

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