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URI getAuthority() method in Java with Examples

  • Last Updated : 02 Jan, 2019

The getAuthority() function is a part of URI class. The function getAuthority() returns the authority of a specified URI. The Authority part of the URL is the host name and the port of the URI.

Function Signature

public String getAuthority()

Syntax:

url.getAuthority()

Parameter This function does not require any parameter

Return Type The function returns String Type which is the authority of the specified URL.



Below programs illustrates the use of getRawAuthority() function:

Example 1:




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

Example 2: The difference between getAuthority() and getHost() function is that getAuthority() returns the host along with the port but getHost() returns only the host name.




// Java program to show the
// use of the function getAuthority()
  
import java.net.*;
  
class GFG {
    public static void main(String args[])
    {
        // url  object
        URI uri = null;
  
        try {
            // create a URI
            uri
                = new URI(
                    "https://www.geeksforgeeks.org:80");
  
            // get the Authority
            String authority
                = uri.getAuthority();
  
            // get the Host
            String host = uri.getHost();
  
            // display the URI
            System.out.println("URI = " + uri);
  
            // display the Authority
            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:
URI = https://www.geeksforgeeks.org:80
Authority = www.geeksforgeeks.org:80
Host = www.geeksforgeeks.org

Example 3: The value returned by getAuthority() and getRawAuthority() is same except that all sequences of escaped octets are decoded. The getRawAuthority() returns the exact value of the string as provided by the user but the getAuthority() function decodes the sequence of escaped octets if any.




// Java program to show the
// use of the function getAuthority()
  
import java.net.*;
  
class GFG {
    public static void main(String args[])
    {
        // url  object
        URI uri = null;
  
        try {
            // create a URI
            uri
                = new URI(
                    "https://www.geeksforgeeks%E2%82%AC.org:80");
  
            // get the Authority
            String authority
                = uri.getAuthority();
  
            // get the Raw Authority
            String Raw_authority
                = uri.getRawAuthority();
  
            // display the URI
            System.out.println("URI = " + uri);
  
            // display the Authority
            System.out.println("Authority = "
                               + authority);
  
            // display the Raw Authority
            System.out.println("Raw Authority = "
                               + Raw_authority);
        }
  
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}
Output:
URI = https://www.geeksforgeeks%E2%82%AC.org:80
Authority = www.geeksforgeeks?.org:80
Raw Authority = www.geeksforgeeks%E2%82%AC.org:80

]

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