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Single video

Java in 100 Seconds

Fireship (Jeff Delaney) · YouTube

Fireship's signature 100-second overview of Java - bytecode the JVM OOP and why it still powers enterprise and Android. Snappy and memorable.

Watch on YouTube → Java

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Course details

Difficulty
Beginner (basic numeracy / literacy assumed)
Length
Under 30 min
Prerequisites
None
Updated
2021
Exercises
No
Certificate
No

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AP Computer Science in Java - Khan Academy

Khan Academy · Khan Academy

Covers Java fundamentals through the AP CS curriculum - variables loops arrays OOP and algorithms - with built-in practice at every step.

Difficulty: beginner