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Java Programming Basics (Udacity)
- ~8hrs of materials
- Syntax basics, functions, looping, etc. IntelliJ + Debugging
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Object Oriented Java - Build Interactive Java Projects (Udacity)
- ~ 9hrs
- Objects, UI + Inputs, Inheritance core concepts, Collections usage, 2 Project builds (movie + space travel)
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Gradle for Android + Java (Google + Udacity)
- ~4hrs (not counting projects)
- Gradle fun (basics, 4 java, 4 android, adv. adnroid concepts), Updating, Project
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Kotlin Bootcamp for Programmers (Google + Udacity)
- ~8hrs
- Kotlin Basics/Syntax and Design
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Free Java by Building Projects (Udemy)
- 3.5hrs
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- Not tried it yet
Please, feel welcome to make suggestions / edits