URL connection send and properties

 import java.io.IOException;  
 import java.net.HttpURLConnection;  
 import java.net.MalformedURLException;  
 import java.net.URL;  
 import java.net.URLConnection;  
 import java.util.Date;  
 import java.util.List;  
 import java.util.Map;  
 import java.util.Set;  
 public class URLTesting   
 {  
   private static Map<String, List<String>> headerMap;  
   private static boolean key;  
   public static void main(String args[]) throws MalformedURLException, IOException  
   {  
     URL url=new URL("http://www.google.com:80/html/default.asp");  
     URLConnection urlcon=url.openConnection();  
     URL urltemp=new URL("http://www.google.com/html/default.asp");  
     HttpURLConnection httpurlcon=(HttpURLConnection) url.openConnection();  
     System.out.println("Protocol:"+url.getProtocol());  
     System.out.println("Port for URL:"+url.getPort());  
     System.out.println("Port for urltemp:"+urltemp.getPort());  
     System.out.println("Host:"+url.getHost());  
     System.out.println("File:"+url.getFile());  
     //System.out.println("String representation of URl:"+url.getExternalForm());  
     System.out.println("Content Type:"+urlcon.getContentType());  
     System.out.println("Content Encoding:"+urlcon.getContentEncoding());  
     System.out.println("Content Length:"+urlcon.getContentLength());  
     System.out.println("Date:"+ new Date(urlcon.getDate()));  
     System.out.println("Last Modified:"+new Date(urlcon.getLastModified()));  
     System.out.println("Expiration:"+new Date(urlcon.getExpiration()));  
     System.out.println("Request method:"+httpurlcon.getRequestMethod());  
     System.out.println("Responsee Message:"+httpurlcon.getResponseMessage());  
     System.out.println("Response code:"+httpurlcon.getResponseCode());  
     Map<String, List<String>>  
       HeaderMap=httpurlcon.getHeaderFields();    
     Set<String> headerKeys=(Set<String>) HeaderMap.keySet();  
     System.out.println("....NOW THW HEADER....");  
     for(String key:headerKeys)  
     {  
       System.out.println("Key:"+key);  
       System.out.println("value:"+HeaderMap.get(key));  
       System.out.println("--------------");  
     }  
   }  
   static class string {  
     public string() {  
     }  
   }  
   private static class set<T> {  
     public set() {  
     }  
   }  
 }