As much as C++ has a lot of problems, them and other languages (python/ruby/etc) never denied that the procedural world existed, while Java wants to blindfold you and push you through a corridor until you get out of it and into the "perfect (not) OOP world"
Each invocation of the jvm requires that you specify the class for which a single static main exists. The other classes containing other static mains are irrelevant.
If you're speaking of `__main()`-style entry point, though, you're right, and Java makes it... complicated.
Interestingly, those two languages use very different mechanisms for top-level functions - although I’m not sure if there’s a significant difference in practice.
Python has true standalone functions, whereas in Ruby’s they’re really methods of a `main` object.
if __name__ == '__main__':
sys.exit (main (sys.argv))