// Ivan Novick
// Dec 28, 2007
//
// command line using gcj:
// $ gcj streamsio.java -C
// $ cat streamsio.java | gij streamsio
//
// demonstrate reading from stdin and writing to stderr

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

class streamsio
{  
    public static void main(String args[])
    {
        // create a buffered reader to read from STDIN
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        String s;

        try
        {
            // read a line into String s and quit the loop when readLine returns null
            while (null != (s = reader.readLine()))
            {
                // print to STDERR
                System.err.println("LINE READ FROM STDIN: " + s);
            }
        }
        catch(IOException e)
        {
            System.out.println("IOException thrown");
        }
    }
}