synthreaddemo.java

来自「学习参考,java基本语法练习,包括一些常用的技巧」· Java 代码 · 共 39 行

//线程同步演示
public class SynThreadDemo
{
    public static void main(String aregs[])
    {
        ThreadTest t = new ThreadTest() ;
        new Thread(t).start();
        new Thread(t).start();
        new Thread(t).start();
        new Thread(t).start();
    }
}
class ThreadTest implements Runnable
{
    private int tickets = 100 ;
    public void run()
    {
        while(true)
        {
            sale() ;
		}
	}
	synchronized public void sale()
	{
    	if(tickets>0)
   		{
        	try
        	{    
            	Thread.sleep(10) ;
			}
			catch(Exception e)
			{
    			System.out.println(e.getMessage());
			}
			System.out.println(Thread.currentThread().getName()+"正在卖票:"+tickets--);
		}
	}
}