corrupteddata.java

来自「java编程开发技巧与实例的编译测试通过的所有例程」· Java 代码 · 共 38 行

public class CorruptedData
{
	protected static int DISPLAY = 1, CHANGE = 2;
	private WorkThread slowWorker = null;
	private WorkThread fastWorker = null;
	private int number = 0;
	
	public CorruptedData()
	{
		number = (int)(10 * Math.random());
		slowWorker	=	new WorkThread(this, DISPLAY);
		fastWorker	=	new WorkThread(this, CHANGE);
	}
	public synchronized void performedWork(int type)
	{
		if (type == DISPLAY)
		{
			System.out.println("Number before sleeping: " + number);
			try
			{
				slowWorker.sleep(2000);
			}
			catch	(InterruptedException ie)
			{
				System.err.println("Error: " + ie);
			}
			System.out.println("Number after waking up: " + number);
		}
		if (type == CHANGE)
			number = - 1;
	}
	public static void main(String args[])
	{
		CorruptedData cd	=	new CorruptedData();
	}
}