Class java.lang.System
  • The set of system properties always includes values for the following keys:
    Key Description of Associated Value
    java.version Java version number
    java.vendor Java vendor-specific string
    java.vendor.url Java vendor URL
    java.home Java installation directory
    java.class.version Java class format version number
    java.class.path Java class path
    os.name Operating system name
    os.arch Operating system architecture
    os.version Operating system version
    file.separator File separator ("/" on UNIX)
    path.separator Path separator (":" on UNIX)
    line.separator Line separator ("\n" on UNIX)
    user.name User's account name
    user.home User's home directory
    user.dir User's current working directory
Java Tutorial - Standard Classes Jens Trapp, 1997