How much time does it take to create a website with html css java n php?

Answer 1

It depends on your skills, motivation and the type of the website.
A simple non-interactive blog could be pretty easy and doesn't have to take long.
A forum or something like that will take longer and is quite a bit harder to make.

Answer 2

Depends on the context and the content of your website. More functionalities means more time to do. If it is a simple website tho, like a blog or something g similar, it won't take you long.