how to give the link to submit the form ie in theform class and action and method

Since the form submission method is POST (and since there are security precautions) you may not be able to post directly over the URL alone. However you have 2 other options that you can use.

Option 1: You can embed you form in a webpage of your choosing. To learn how to do it, the link below can be used as guidance. JotForm User Guides provide various tutorials on many topics.

How to acquire embed link for a desired form

Option 2: If you would like to use JotForm programmatically, there is an API available for that. Getting the API key and calling the appropriate endpoints will allow you to execute JotForm actions. You can find the official API guide at the link below.

JotForm API Docs