Find proxy settings in java pgm

Find proxy settings

import java.net.HttpURLConnection;

import java.net.URL;

import java.util.Properties;

import java.net.InetSocketAddress;

import java.net.Proxy;

import java.net.ProxySelector;

import java.net.URI;

public class Main

{

   public static void main(String s[]) throws Exception

   {

      try 

      {

         Properties systemSettings = System.getProperties();

         systemSettings.put("proxySet", "true");

         systemSettings.put("http.proxyHost", "proxy.mycompany1.local");

         systemSettings.put("http.proxyPort", "80");

         URL u = new URL("http://www.google.com");

         HttpURLConnection con = (HttpURLConnection)

         u.openConnection();

         System.out.println(con.getResponseCode() + 

         " : " + con.getResponseMessage());

         System.out.println(con.getResponseCode() == 

         HttpURLConnection.Http_Ok);

      }

      catch (Exception e) 

      {

         e.printStackTrace();

         System.out.println(false);

      }

      System.setProperty("java.net.useSystemProxies", "true");

      Proxy proxy = (Proxy) ProxySelector.getDefault().

      select(new URI("http://www.yahoo.com/")).iterator().

      next();;

      System.out.println("proxy hostname : " + proxy.type());

      InetSocketAddress addr = (InetSocketAddress)

      proxy.address();

      if (addr == null) 

     {

         System.out.println("No Proxy");

      }

      else 

     {

         System.out.println("proxy hostname : " + addr.getHostName());

         System.out.println("proxy port : "         + addr.getPort());

      }

   }

}