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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.6.0
java.lang.management
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Method Summary | |
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String |
getArch()
Returns the operating system architecture. |
int |
getAvailableProcessors()
Returns the number of processors available to the Java virtual machine. |
String |
getName()
Returns the operating system name. |
double |
getSystemLoadAverage()
Returns the system load average for the last minute. |
String |
getVersion()
Returns the operating system version. |
Method Detail |
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String getName()
SecurityException
- if a security manager exists and its
checkPropertiesAccess
method doesn't allow access
to this system property.SecurityManager.checkPropertyAccess(java.lang.String)
,
System.getProperty(java.lang.String)
String getArch()
SecurityException
- if a security manager exists and its
checkPropertiesAccess
method doesn't allow access
to this system property.SecurityManager.checkPropertyAccess(java.lang.String)
,
System.getProperty(java.lang.String)
String getVersion()
SecurityException
- if a security manager exists and its
checkPropertiesAccess
method doesn't allow access
to this system property.SecurityManager.checkPropertyAccess(java.lang.String)
,
System.getProperty(java.lang.String)
int getAvailableProcessors()
Runtime.availableProcessors()
method.
This value may change during a particular invocation of the virtual machine.
double getSystemLoadAverage()
If the load average is not available, a negative value is returned.
This method is designed to provide a hint about the system load and may be queried frequently. The load average may be unavailable on some platform where it is expensive to implement this method.