12/11   Anybody know how StringBuffer.reverse() works?  How would I do
        that in O(n) time? --doesn't have a decompiler
        \_ for(i=0;i<length of string; i++) {
            newstring[i] = oldstring[length of string - i];
            }
            there, it's reversed.  if youwant the original string copied
            over, add:
            for(i=0;i<length of string; i++) {
              oldstring[i] = newstring[i];
            }
            That is an O(n) operation.  You could claim it is an O(2n)
            operation also, but only a fool would nitpick that.  And
            by the way, you are as dumb as a stone for having to ask.
            \_ Informative and insulting in one response!  Great work.
               -geordan
            \_ Should be "newstring[i] = oldstring[length of string - 1 - i];".
                \_ Yeah.  But you should have left it as an
                   exercise for the OP.
        \_ FYI, Java source is always available to be downloaded; you don't
           need a decompiler.