String numberStringOnly = inputString.replaceAll("[^\\d]", "");

import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedInputStream;

public class Monitor 
{
  public static void main(String[] args) throws Exception
  {
	  int x = 0;
      while (true) {
          Thread.sleep(5000);
          String url = "http://localhost:9911/star?request=1";
          URL url = new URL(url);
	  BufferedInputStream bis = (BufferedInputStream)url.getContent();
	  int chr;
	  String xstr = "";
	         while ((chr = bis.read()) != -1) xstr += (char)chr;
          
          if (Integer.parseInt(xstr.replaceAll("\\D", "")) >= 200) {
              HttpURLConnection c = ( HttpURLConnection ) 
                      new URL( "http://localhost:9911/star?transf=2&stars=" + x ).openConnection();

             System.out.println( c.getResponseCode() );
          } else {
        	  
          }
      }  

   } 
 }