How to create multiple workspaces with NetBeans

Examples

• Windows:
  netbeans.exe --userdir C:\MyOtherUserdir --cachedir "%HOME%\Locale Settings\Application Data\NetBeans\7.1\cache"

• Unix:
  ./netbeans --userdir ~/my-other-userdir

• Mac OS:
  /Applications/NetBeans.app/Contents/MacOS/executable --userdir ~/my-other-userdir

Ref: http://wiki.netbeans.org/FaqAlternateUserdir