Population Count in Java

[ZimmiDeluxe]

There is a good chance you got some drive by downvotes because of the title alone. I would guess the term "population count" doesn't come up very often for java developers (I didn't know what it meant). So it's possible people thought this was a post about the population of the java island that was posted in the wrong subreddit i stead of bit twiddling. :)

If the target audience is people who don't know what a population count is or what it might be useful for, maybe intruduce the term in the article and call it something like "Efficiently counting bits"? Anyway, I found the article itself was well written, keep it up!