Java URL class getDefaultPort() Method

The getDefaultPort() method of URL class is used to get the default port number of the protocol associated with given URL. If the URL scheme or the URLStreamHandler for the URL does not define a default port number, then -1 is returned.

Syntax

Returns

the port number

Since

1.4

Example 1

import java.net.URL;
import java.util.Scanner;

public class UrlgetDefaultPortExample1{

	public static void main(String args[]) throws Exception
	{	
	//passing url in constructor
	Scanner s= new Scanner(System.in);
	System.out.println("Enter Url ");
	String url=s.nextLine();
	URL u=new URL(url);
	//printing Defaultport of the url
System.out.println("The Defaultport of the given url is : "+u.getDefaultPort());	
	}
}

Output:

Enter Url 
https://www.javatpoint.com/java-date
The Defaultport of the given url is : 443

Example 2

import java.net.*;
public class UrlgetDefaultPortExample2{
	
URL url;
String host,protocol;
int port;
	public void HttpCallerInfo(URL url) {
	    this.url= url;
	    host = url.getHost();
	    int p = url.getPort();
	    if (p == -1) {
	        port = url.getDefaultPort();
	    } else {
	        port = p;       
	   }
	    protocol = url.getProtocol();
	    System.out.println(" Default Port "+port);
	    System.out.println(" Protocal "+protocol);
	    System.out.println(" Host "+host);
	}
public static void main(String args[]) throws Exception
   {
	UrlgetDefaultPortExample2 ga=new UrlgetDefaultPortExample2();
	URL url=new URL("https://www.google.com");
	System.out.println("Given URL is : "+url);
	ga.HttpCallerInfo(url);
     }
} 

Test it Now

Output:

Given URL is : https://www.google.com/
Default Port 443
Protocal https
Host www.google.com

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