I know about vsplit and split, what I meant was a better terminal than conqueterm. Now, the Emacs ansi-term is also not perfect, but way better than Conqueterm.

Org mode is a very sophisticated Todo and documentation and wiki and calendar and management and literal programming system for Emacs. I haven't found anything that compares to it. It is really really good.

The java doc thing is something entirely different, and that's usually made possible by the various language modes.