It's like Duolingo, but for code.
Untitled Goose Game doesn't hold a candle to this
Java is an EXCELlent language.
Vote on stupid questions
You drag-and-drop the code.
The silliest stack-based concatenative language.
It's a Minesweeper AI.
It's an interpreter for Java, written in Java.
It's coup, playable on the web.