Unfortunately 3 billion devices run Java.
Java (not to be confused with JavaScript) is a highly bloated, inefficient, "programming language" that's sadly kind of popular. It is compiled to bytecode and therefore "platform independent" (as long as the platform has a lot of resources to waste on running Java virtual machine). Some of the features of Java include bloat, slow loading, slow running, supporting capitalism, forced and unavoidable object obsession and the necessity to create a billion of files to write even a simple program.
Avoid this shit.
{ I've met retards who seriously think Java is more portable than C lol. I wanna suicide myself. ~drummyfish }
All content available under CC0 1.0 (public domain). Send comments and corrections to drummyfish at disroot dot org.