Simple yet Useful: Unix Tail implementation in Java

Free code for your to enjoy... do drop me an email if you find this useful.

import java.io.*;

public class Tail {

    public static void main(String args[]) throws Exception {

        FileInputStream file = new FileInputStream(args[0]);

        int ch;

        while(true) {

            while((ch = file.read()) != -1) System.out.write((char) ch);

            Thread.sleep(1000);

        }

    }

}

I would welcome suggestions on how to make it simpler.