System
Class System
- java.lang.Object
-
- java.lang.System
public final class System extends Object
The System class contains several useful class fields and methods. It cannot be instantiated.
Among the facilities provided by the System class are standard input, standard output, and error output streams; access to externally defined properties and environment variables; a means of loading files and libraries; and a utility method for quickly copying a portion of an array.
- Since:
- JDK1.0
Fields
in
public static final InputStream in
The "standard" input stream. This stream is already open and ready to supply input data. Typically
