URL getHost() method in Java with Examples

Last Updated : 27 Dec, 2018

getHost() function is a part of URL class. The function getHost() returns the Host of a specified URL. The Host part of the URL is the host name of the URL. The format of the host conforms to RFC 2732.

Function Signature

public String getHost()

Syntax

url.getHost()

Parameter: This function does not require any parameter

Return Type: The function returns String Type

Below programs illustrates the use of getHost() function:

Example 1:

// Java program to show the use 
// of the function getHost() 
  
import java.net.*; 
  
class GFG { 
    public static void main(String args[]) 
    { 
        // url  object 
        URL url = null; 
  
        try { 
  
            // create a URL 
            url 
                = new URL("https:// www.geeksforgeeks.org"); 
  
            // get the Host 
            String Host = url.getHost(); 
  
            // display the URL 
            System.out.println("URL = " + url); 
  
            // display the Host 
            System.out.println("Host = " + Host); 
        } 
  
        // if any error occurs 
        catch (Exception e) { 
  
            // display the error 
            System.out.println(e); 
        } 
    } 
} 

Output:

URL = https:// www.geeksforgeeks.org
Host =  www.geeksforgeeks.org

Example 2:

// Java program to show the 
// use of the function getHost() 
  
import java.net.*; 
  
class GFG { 
    public static void main(String args[]) 
    { 
        // url  object 
        URL url = null; 
  
        try { 
            // create a URL 
            url 
                = new URL( 
                    "https:// www.geeksforgeeks.org:80/url-samefile-method-in-java-with-examples/"); 
  
            // get the Authority 
            String authority 
                = url.getAuthority(); 
  
            // get the Host 
            String host = url.getHost(); 
  
            // display the URL 
            System.out.println("URL = " + url); 
  
            // display the Host 
            System.out.println("Authority = "
                               + authority); 
  
            // display the Host 
            System.out.println("Host = " + host); 
        } 
        // if any error occurs 
        catch (Exception e) { 
  
            // display the error 
            System.out.println(e); 
        } 
    } 
} 

Output:

URL = https:// www.geeksforgeeks.org:80/url-samefile-method-in-java-with-examples/
Authority =  www.geeksforgeeks.org:80
Host =  www.geeksforgeeks.org

Example 3: If we create a URL with no host name and ask for the host using the getHost() function the function returns blank String.

// Java program to show the 
// use of the function getHost() 
  
import java.net.*; 
  
class GFG { 
    public static void main(String args[]) 
    { 
        // url  object 
        URL url = null; 
  
        try { 
            // create a URL 
            url = new URL("https://"); 
  
            // get the Host 
            String Host = url.getHost(); 
  
            // display the URL 
            System.out.println("URL = " + url); 
  
            // display the Host 
            System.out.println("Host = " + Host); 
        } 
  
        // if any error occurs 
        catch (Exception e) { 
  
            // display the error 
            System.out.println(e); 
        } 
    } 
} 