JAVA System 类

public final static InputStream in	nullInputStream();
public final static PrintStream out	nullPrintStream();
public final static PrintStream err	nullPrintStream();
public static void	System::setIn(InputStream in)
public static void	System::setOut(PrintStream out)
public static void	System::setErr(PrintStream err)
public static void setSecurityManager(final SecurityManager s)
(in) (in) (in) public Object	System::run()
public static SecurityManager	System::getSecurityManager()
public static native long	System::currentTimeMillis();
public static native void	System::arraycopy(Object src, int src_position, Object dst, int dst_position, int length);
public static native int	System::identityHashCode(Object x);
public static Properties	System::getProperties()
public static void	System::setProperties(Properties props)
public static String	System::getProperty(String key)
public static String	System::getProperty(String key, String def)
public static String	System::setProperty(String key, String value)
public static String	System::getenv(String name)
public static void	System::exit(int status)
public static void	System::gc()
public static void	System::runFinalization()
public static void	System::runFinalizersOnExit(boolean value)
public static void	System::load(String filename)
public static void	System::loadLibrary(String libname)
public static native String	System::mapLibraryName(String libname);