Obter informações Java Control Panel

import java.net.InetSocketAddress;

import java.net.Proxy;

import java.net.ProxySelector;

import java.net.URI;

import java.util.Iterator;

import java.util.List;

/**
*

• @author guilherme.diniz
  */
  public class testProxy {

  public static void main(String[] args) {
  
  try {
  
  System.setProperty(“java.net.useSystemProxies”,“true”);
  
  List l = ProxySelector.getDefault().select(
  
  new URI(“<a href="http://www.yahoo.com/">http://www.yahoo.com/</a>”));
  
  for (Iterator iter = l.iterator(); iter.hasNext(); ) {
  

  Proxy proxy = (Proxy) iter.next();                
           System.out.println("proxy hostname : " + proxy.type());
  
           
           InetSocketAddress addr = (InetSocketAddress)
               proxy.address();
           
           if(addr == null) {                    
               System.out.println("Sem Proxy");                    
           } else {                    
               System.out.println("proxy hostname : " + 
                       addr.getHostName());                    
               System.out.println("proxy port : " + 
                       addr.getPort());
           }
       }
   } catch (Exception e) {
       e.printStackTrace();
   }
  

  }
  }