public class Strings {
  private static void show(int nc) {
    String s = "";
    long start = System.currentTimeMillis();
    for (int i = 0; i < nc; i++) s = s + ".";
    double elapsed = (System.currentTimeMillis() - start) / 1000.0;
    System.out.printf("<tr><td>%d<td>%.3f", nc, elapsed);
  }
	
  public static void main(String[] args) {
    System.out.println("<html><head>");
    System.out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../teaching.css\">");
    System.out.println("</head><body><table border><tr><td>Length<td>Seconds");
    show(1000);
    show(10000);
    show(100000);
    show(1000000);
    System.out.println("</table></body></html>");
  }
}