@ghulammujtaba
Yes of-course
This Site is best for learning HTML, CSS ,JAVA

https://www.w3schools.com/html/ (HTML)
https://www.w3schools.com/css/default.asp (CSS)
https://www.w3schools.com/js/default.asp (JAVA)
https://www.w3schools.com/php/default.asp (PHP)

https://www.freelancer.com/community/articles/html-cheat-sheet-a-simple-guide-to-html?ft_prog=CFC&ft_prog_id=764 (HTML Guied Line)

C++ Learning for pratice Code

https://en.wikibooks.org/wiki/C%2B%2B_Programming/Exercises/Iterations#EXERCISE_1 ( Pratice C++ )