System

Default error output stream.

Default input stream.

Default output stream.

Copies length elements from the array src, starting at offset srcPos, into the array dst, starting at offset dstPos.

Removes a specific system property.

Returns the Console associated with this VM, or null. Not all VMs will have an associated console. A console is typically only available for programs run from the command line.

Returns the current system time in milliseconds since January 1, 1970 00:00:00 UTC. This method shouldn't be used for measuring timeouts or other elapsed time measurements, as changing the system time can affect the results.

Causes the VM to stop running and the program to exit. If runFinalizersOnExit(boolean) has been previously invoked with a true argument, then all objects will be properly garbage-collected and finalized first.

Indicates to the VM that it would be a good time to run the garbage collector. Note that this is a hint only. There is no guarantee that the garbage collector will actually be run.

Returns the system properties. Note that this is not a copy, so that changes made to the returned Properties object will be reflected in subsequent calls to getProperty and getProperties.

Returns the value of a particular system property or null if no such property exists.

The following properties are always provided by the Dalvik VM:

It is a mistake to try to override any of these. Doing so will have unpredictable results.

Returns the value of a particular system property. The defaultValue will be returned if no such property has been found.

Returns null. Android does not use SecurityManager. This method is only provided for source compatibility.

Returns the value of the environment variable with the given name var.

Returns an unmodifiable map of all available environment variables.

Returns an integer hash code for the parameter. The hash code returned is the same one that would be returned by the method java.lang.Object.hashCode(), whether or not the object's class has overridden hashCode(). The hash code for null is 0.

Returns the inherited channel from the creator of the current virtual machine.

Loads and links the dynamic library that is identified through the specified path. This method is similar to loadLibrary(String), but it accepts a full path specification whereas loadLibrary just accepts the name of the library to load.

Loads and links the library with the specified name. The mapping of the specified library name to the full path for loading the library is implementation-dependent.

Returns the platform specific file name format for the shared library named by the argument.

Returns the current timestamp of the most precise timer available on the local system. This timestamp can only be used to measure an elapsed period by comparing it against another timestamp. It cannot be used as a very exact system time expression.

Provides a hint to the VM that it would be useful to attempt to perform any outstanding object finalization.

Ensures that, when the VM is about to exit, all objects are finalized. Note that all finalization which occurs when the system is exiting is performed after all running threads have been terminated.

Sets the standard error output stream to the given user defined output stream.

Sets the standard input stream to the given user defined input stream.

Sets the standard output stream to the given user defined output stream.

Sets all system properties. This does not take a copy; the passed-in object is used directly. Passing null causes the VM to reinitialize the properties to how they were when the VM was started.

Sets the value of a particular system property.

Throws SecurityException.

Security managers do not provide a secure environment for executing untrusted code and are unsupported on Android. Untrusted code cannot be safely isolated within a single VM on Android, so this method always throws a SecurityException.