Key | Meaning |
file.separator | Character that separates components of a file path. This is "/" on UNIX and "\" on Windows. |
java.class.path | Path used to find directories and JAR archives containing class files. Elements of the class path are separated by a platform-specific character specified in the path.separator property. |
java.home | Installation directory for Java Runtime Environment (JRE). |
java.vendor | JRE vendor name. |
java.vendor.url | JRE vendor URL. |
java.version | JRE version number. |
line.separator | Sequence used by operating system to separate lines in text files. |
os.arch | Operating system architecture. |
os.name | Operating system name. |
os.version | Operating system version. |
path.separator | Path separator character used in java.class.path. |
user.dir | User working directory. |
user.home | User home directory. |
user.name | User account name. |
getProperty(String which, String default) | Returns the property associated with which . If the desired property is not found, default is returned |
getProperty(String which) | Returns the property associated with which . A null object is returned if the desired property is not found. |
setProperty(String which, String v) | Assigns the value v to the property named which. |
clearProperty(String which) | Deletes the environmental variable specified by which . The previous value associated with which is returned |