Java - URL hashCode() Method with Examples

Description

The Java URL hashCode() method creates and returns an integer suitable for hash table indexing. The hash code is based upon all the URL components relevant for URL comparison. This operation is a blocking operation.

Declaration

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

public int hashCode()

Parameters

NA

Return Value

a hash code for this URL.

Exception

NA

Example 1

The following example shows the usage of Java URL hashCode() method for a valid url with https protocol. In this example, we're creating an instance of URL class. Now using hashCode() method, we're getting the hashcode 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");
         int result = url.hashCode();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

1207952254

Example 2

The following example shows the usage of Java URL hashCode() method for a valid url. In this example, we're creating an instance of URL class. Now using hashCode() method, we're getting the hashcode 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?language=en#j2se");
         int result = url.hashCode();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

1169952135

Example 3

The following example shows the usage of Java URL hashCode() method for a valid url with file protocol. In this example, we're creating an instance of URL class. Now using hashCode() method, we're getting the hashcode 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?language=en#j2se");
         int result = url.hashCode();
         System.out.println(result);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

1073477724