Does anyone here have any figures on how much memory Java takes up when running its typical tasks?

These are real ball-park figures based on looking at "free memory" from vmstat from several instances of launching, running, then exiting from the listed programs: Java compiler (written in Java), compiling big program: 2.5 MB HotJava browser (written in Java), after running some applets: 4.0 MB "Hello world" Java program (no GUI): 800K