Advanced JAVA 7

Advanced JAVA 7

URL class

Java URL Class present in java.net package, deals with URL (Uniform Resource Locator) which uniquely identify or locate resources on internet.

http://www.bethedeveloper.com:18/index.html

protocol : http 
hostname : www.bethedeveloper.com
portnumber : 80
file name : index.html

Program using URL  class

1. getProtocol ( ) : Returns protocol of URL.
2. getHost( ) : Returns hostname(domain name) of URL.
3. getPort( ) : Returns port number of URL.
4. getFile( ) : Returns filename of URL

Program using URL  class

import java.net.*;
class Test
{
 public static void main(String[] arg) throws MalformedURLException 
 {
  URL url = new URL("http://www.bethedeveloper.com/java");
  System.out.println("Protocol: "+url.getProtocol());  
  System.out.println("Host Name: "+url.getHost());  
  System.out.println("Port Number: "+url.getPort());  
  System.out.println("File Name: "+url.getFile());  
 }
}

Output:
Protocol: http
Host Name: www.bethedeveloper.com
Port Number: -1
File Name: /java