Increase heap sizes using gij

[Pat - We Create <pat@xxxxxxxxxxxxx>]

Hi,
Is anyone able to tell me how to increase the start and maximum heap sizes
via ssh? In terminal I get the following form help:

Usage: gij [OPTION] ... CLASS [ARGS] ...
          to interpret Java bytecodes, or
       gij -jar [OPTION] ... JARFILE [ARGS] ...
          to execute a jar file

  --cp LIST         set class path
  --classpath LIST  set class path
  -DVAR=VAL         define property VAR with value VAL
  -?, --help        print this help, then exit
  -X                print help on supported -X options, then exit
  --ms=NUMBER       set initial heap size
  --mx=NUMBER       set maximum heap size
  --verbose[:class] print information about class loading
  --showversion     print version number, then keep going
  --version         print version number, then exit

Options can be specified with `-' or `--'.


I've tried typing 'gij ?ms=512' and various other combinations but can't
get anything to work, it just keeps outputting the help:
Usage: gij [OPTION] ... CLASS [ARGS] ...
          to interpret Java bytecodes, or
       gij -jar [OPTION] ... JARFILE [ARGS] ...
          to execute a jar file


Thanks,
Pat