Class SystemProperties

public class SystemProperties
extends Object

The class manages the System properties. This class is only available to privileged code (i.e. code loaded by the bootstrap class loader) and therefore doesn't do any security checks. This class is separated out from java.lang.System to simplify bootstrap dependencies and to allow trusted code a simple and efficient mechanism to access the system properties.

Method Summary

static Properties
static String
getProperty(String name)
static String
getProperty(String name, String defaultValue)
static String
remove(String name)
Removes the supplied system property and its current value.
static void
setProperties(Properties properties)
static String
setProperty(String name, String value)

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details


public static Properties getProperties()


public static String getProperty(String name)


public static String getProperty(String name,
                                 String defaultValue)


public static String remove(String name)
Removes the supplied system property and its current value. If the specified property does not exist, nothing happens.
the value of the removed property, or null if no such property exists.
NullPointerException - if the property name is null.


public static void setProperties(Properties properties)


public static String setProperty(String name,
                                 String value) -- Manage the System properties. Copyright (C) 2004, 2005, 2006 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.