Networking : HttpUrlConnection

public class HttpUrlConnection {

    public static void main(String[] args){
        try{
            URL url=new URL("http://www.w3schools.com/sql/");            //URL url=new URL("http://www.javatpoint.com/java-tutorial");            HttpURLConnection huc=(HttpURLConnection)url.openConnection();            for(int i=1;i<=8;i++){
                System.out.println(huc.getHeaderFieldKey(i)+" = "+huc.getHeaderField(i));            }
            huc.disconnect();        }catch(Exception e){System.out.println(e);}
    }

}