ythread.java

<Java编程精选集锦>随书源码

//
//YThread.java--将数据从"X"改变到"Y"的线程
//
import java.io.*;

class YThread extends Thread
{
    DataInputStream XFileIn;
    PrintStream printStream;
    YThread(DataInputStream XFileIn, PrintStream printStream)
    {
        this.XFileIn = XFileIn;
        this.printStream = printStream;
    }
    public void run()
    {
        try
        {
            String XString = XFileIn.readLine();
            while (XString != null)
            {
                String YString = XString.replace('X', 'Y'); 
                printStream.println(YString);
                printStream.flush();
                XString = XFileIn.readLine();
            }
            printStream.close();
        }
        catch (IOException e)
        {
            System.out.println(e.toString());
        }
    }
}