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URL getDefaultPort() method in Java with Examples
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URL getDefaultPort() method in Java with Examples

Last Updated : 27 Dec, 2018
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The getDefaultPort() function of URL class returns the default port of a specified URL. If the URL scheme or the URLStreamHandler for the URL do not define a default port number then the function returns -1. Function Signature
  public int getDefaultPort()  
Syntax
  url.getDefaultPort()  
Parameter This function does not require any parameter Return Value: The function returns an Integer value which is the default port of the specified URL. Below examples will illustrate the use of getDefaultPort() function: Example 1 Default port of HTTPS Java
// Java program to show the use // of the function getDefaultPort()  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 default port             int default_port = url.getDefaultPort();              // display the URL             System.out.println("URL: " + url);              // display the default port             System.out.println("Default Port: "                                + default_port);         }          // if any error occurs         catch (Exception e) {              // display the error             System.out.println(e);         }     } } 
Output:
  URL: https:// www.geeksforgeeks.org  Default Port: 443  
Example 2: Default port of HTTP Java
// Java program to show the use // of the function getDefaultPort()  import java.net.*;  class GFG {     public static void main(String args[])     {         // url  object         URL url = null;          try {             // create a URL             url = new URL("http:// www.geeksforgeeks.org");              // get the default port             int default_port = url.getDefaultPort();              // display the URL             System.out.println("URL: " + url);              // display the default port             System.out.println("Default Port: "                                + default_port);         }          // if any error occurs         catch (Exception e) {              // display the error             System.out.println(e);         }     } } 
Output:
  URL: http:// www.geeksforgeeks.org  Default Port: 80  
Example 3 Default port of FTP Java
// Java program to show the use // of the function getDefaultPort()  import java.net.*;  class GFG {     public static void main(String args[])     {         // url  object         URL url = null;          try {              // create a URL             url = new URL("ftp:// www.geeksforgeeks.org");              // get the default port             int default_port = url.getDefaultPort();              // display the URL             System.out.println("URL: " + url);              // display the default port             System.out.println("Default Port: "                                + default_port);         }          // if any error occurs         catch (Exception e) {              // display the error             System.out.println(e);         }     } } 
Output:
  URL: ftp:// www.geeksforgeeks.org  Default Port: 21  

Next Article
URL getDefaultPort() method in Java with Examples

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andrew1234
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Article Tags :
  • Java
  • Java-Functions
  • Java-net-package
  • Java-URL
Practice Tags :
  • Java

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