Java - URL toExternalForm() Method with Examples

Description

The Java URL toExternalForm() method returns a string representation of this URL. The string is created by calling the toExternalForm method of the stream protocol handler for this object.

Declaration

Following is the declaration for java.net.URL.toExternalForm() method

public String toExternalForm()

Parameters

NA

Return Value

a string representation of this object.

Exception

NA

Example 1

The following example shows the usage of Java URL toExternalForm() method for a valid url with https protocol. In this example, we're creating an instance of URL class. Now using toExternalForm() method, we're getting the string representation of the URL object and printing the same −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;

public class UrlDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("https","www.tutorialspoint.com","/index.htm");
         String result = url.toExternalForm();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

https://www.tutorialspoint.com/index.htm

Example 2

The following example shows the usage of Java URL toExternalForm() method for a valid url with http protocol. In this example, we're creating an instance of URL class with a port number as 80. Now using toExternalForm() method, we're getting the String representation of the URL object and printing the same −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;

public class UrlDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("http","www.tutorialspoint.com",80,"/index.htm");
         String result = url.toExternalForm();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

http://www.tutorialspoint.com:80/index.htm

Example 3

The following example shows the usage of Java URL toExternalForm() method for a valid url with file protocol. In this example, we're creating an instance of URL class. Now using toExternalForm() method, we're getting the String representation of the URL object and printing the same −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;

public class UrlDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("file","www.tutorialspoint.com","/index.htm");
         String result = url.toExternalForm();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

file://www.tutorialspoint.com/index.htm