App.java

import java.io.*;
class App {
    public static void main(String args[])
    throws IOException
    {
        // create a BufferedReader using System.in
        BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));
        String str;

        System.out.println("Enter lines of text.");
        System.out.println("Enter 'stop' to quit.");
        do {
            str = obj.readLine();
            System.err.println(str);
        } while(!str.equals("stop"));
    }
}