A servlet is a Java class that serves up HTML to a browser.
When a user goes to a URL containing the servlet, the doGet method will get the logic …
The request is what the browser sends to the servlet. The response is what the servlet sends back to the browser.
The servlet has a URL that corresponds to it.
You normally don’t write HTML to the servlet. You put your HTML into a java servlet page (jsp).
You put your web content inside the Web Content directory.
The JSP page is actually compiled into a servlet before the server runs it.