Ping com Socket Muito Lento. isReachable resolve?

//**************************************
//     
// Name: Ping in JAVA
// Description:Actually, we can't code P
//     ING implementation in JAVA. But, we can 
//     use PING command based on our system, an
//     d then catch and parse the output.
// By: yan friskan
//
//This code is copyrighted and has// limited warranties.Please see http://
//     www.Planet-Source-Code.com/vb/scripts/Sh
//     owCode.asp?txtCodeId=4559&lngWId=2//for details.//**************************************
//     

// actually this code come from
// http://forum.java.sun.com/thread.jsp?
//     forum=49&thread=190073&tstart=0&trange=1
//     5
// I'm just modified it a little. I thin
//     k this is may be usefull for beginners l
//     ike you and me :)
class tryMe {
  public static void main(String [] args) {
    String hostIP = "10.112.1.113";
    java.lang.Runtime r = java.lang.Runtime.getRuntime();

    try {
      java.lang.Process p = r.exec("ping " + hostIP);
      java.io.BufferedReader br = new java.io.BufferedReader(            				new java.io.InputStreamReader(p.getInputStream()) );
      String l = "";

      try {
        while((l = br.readLine()) != null) {
          if(l.startsWith("Reply from"))
            System.out.println("LIFE -->" + l);
          if(l.startsWith("Request timed out"))
            System.out.println("DIES -->" + l);
        }
      } catch(java.io.IOException ioe) {
        ioe.printStackTrace();
      }
    } catch(java.io.IOException ioe) {
      ioe.printStackTrace();
    }
  }
}

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