How can I put pictures in my program?

Question

I would want pictures in my programs, but I don't know how to put them in.
Edit: What languages am I supposed to learn? CSS, JavaScript, or HTML?

Answer 1

At the code playground it is only possible for web projects.

Answer 2

As @Tashi said, you can do it only in web codes. See this code.
https://code.sololearn.com/WCgZGnQSEv33/?ref=app