How can i retrieve data from mysql database to a div in dashboard?

I have made a simple dashboard with html , CSS and JS . And I am implementing it as a java web application using glassfish and XAMMP. What I would like to get is some information into my html div tags from the database to be shown in the dashboard menu cards :

The code is :

 <!-- MAIN CARDS STARTS HERE -->
          <div class="main__cards">
            <div class="card">
              <i>icon</i>
              <div class="card_inner">
                  **Where I want how many employees are there queried from employee table **
             </div>
            </div>
            <div class="card">
              <div class="card_inner">
                **I want how many doctors are there** 
              </div>
            </div>
         

I'm just unable to think of a way to do it , I search and research but I couldn't find any information.

If anyone could help i could really use some help. Thanks in advance for all .