>>39
int takes less place that Integer.
So? A special magical type and a handicapped class. Implementation efficiency shouldn't get in the way of a good language; if there's an optimization to do, it should be done transparently, not at the cost of the language.
I hated that in C++
Several things can't be done with it. Then you have interfaces, which suck.
Learn to RTFM
Of course I RTFM, it's the only way I can use it, because there's no way in hell I could memorize all that shit. Which gets me to the point the Java standard library is unproductive, like anything Java, which is just the opposite to what Sun claims.