StreamXORStringKey

import java.io.*;
public class StreamXORStringKey {

    public static void main(String[] args) {

    String word = "rhubarb";
    int count = 0;

    try {
            byte a;

            while((a = (byte)System.in.read())!= -1){
                    System.out.printf("%c", (a ^ word.charAt(count % word.length())));
                    count++;
                }
        }
        catch(IOException io){
                io.printStackTrace();
        }
    }
}