Computer Science

Building Database Applications in PHP

Building Web Applications in PHP

Introduction to Mojo for Python developers (Modular Workshops)

Mojo Programming Language - Full Course for Beginners (freeCodeCamp)

Exercism: Lua Track

Codédex: Learn Lua

Codecademy: Learn Lua

Learn Kotlin Programming (Programiz)

Android Kotlin Fundamentals course

Master Kotlin and Android, 60 Hour Course (freeCodeCamp)

Learn Kotlin Programming, Full Course for Beginners (freeCodeCamp)

Kotlin Bootcamp for Programmers (Grow with Google)

Kotlin Bootcamp for Programmers (Udacity)

Android Basics with Compose

Kotlin Core (JetBrains Academy)

Introduction to Computational Thinking (MIT 18.S191)

Introduction to DataFrames.jl

Introduction to Julia (for programmers)

Julia Programming for Nervous Beginners

Exercism Java Track

Sololearn Java Course

Great Learning Free Java Programming Course

Dev.java Learn Path (Oracle)

Codecademy Learn Java