AWT_TOOLKIT
public static final String AWT_TOOLKIT
The
awt.toolkit
System Property.
Holds a class name, on Windows XP this is
sun.awt.windows.WToolkit
.
On platforms without a GUI, this value is null
.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
FILE_ENCODING
public static final String FILE_ENCODING
The
file.encoding
System Property.
File encoding, such as
Cp1252
.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
FILE_SEPARATOR
public static final String FILE_SEPARATOR
The
file.separator
System Property.
File separator (
"/"
on UNIX).
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
IS_JAVA_1_1
public static final boolean IS_JAVA_1_1
Is
true
if this is Java version 1.1 (also 1.1.x versions).
The field will return
false
if
JAVA_VERSION
is
null
.
IS_JAVA_1_2
public static final boolean IS_JAVA_1_2
Is
true
if this is Java version 1.2 (also 1.2.x versions).
The field will return
false
if
JAVA_VERSION
is
null
.
IS_JAVA_1_3
public static final boolean IS_JAVA_1_3
Is
true
if this is Java version 1.3 (also 1.3.x versions).
The field will return
false
if
JAVA_VERSION
is
null
.
IS_JAVA_1_4
public static final boolean IS_JAVA_1_4
Is
true
if this is Java version 1.4 (also 1.4.x versions).
The field will return
false
if
JAVA_VERSION
is
null
.
IS_JAVA_1_5
public static final boolean IS_JAVA_1_5
Is
true
if this is Java version 1.5 (also 1.5.x versions).
The field will return
false
if
JAVA_VERSION
is
null
.
IS_OS_AIX
public static final boolean IS_OS_AIX
Is
true
if this is AIX.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_HP_UX
public static final boolean IS_OS_HP_UX
Is
true
if this is HP-UX.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_IRIX
public static final boolean IS_OS_IRIX
Is
true
if this is Irix.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_LINUX
public static final boolean IS_OS_LINUX
Is
true
if this is Linux.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_MAC
public static final boolean IS_OS_MAC
Is
true
if this is Mac.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_MAC_OSX
public static final boolean IS_OS_MAC_OSX
Is
true
if this is Mac.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_OS2
public static final boolean IS_OS_OS2
Is
true
if this is OS/2.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_SOLARIS
public static final boolean IS_OS_SOLARIS
Is
true
if this is Solaris.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_SUN_OS
public static final boolean IS_OS_SUN_OS
Is
true
if this is SunOS.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_UNIX
public static final boolean IS_OS_UNIX
Is
true
if this is a POSIX compilant system,
as in any of AIX, HP-UX, Irix, Linux, MacOSX, Solaris or SUN OS.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS
public static final boolean IS_OS_WINDOWS
Is
true
if this is Windows.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_2000
public static final boolean IS_OS_WINDOWS_2000
Is
true
if this is Windows 2000.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_95
public static final boolean IS_OS_WINDOWS_95
Is
true
if this is Windows 95.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_98
public static final boolean IS_OS_WINDOWS_98
Is
true
if this is Windows 98.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_ME
public static final boolean IS_OS_WINDOWS_ME
Is
true
if this is Windows ME.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_NT
public static final boolean IS_OS_WINDOWS_NT
Is
true
if this is Windows NT.
The field will return
false
if
OS_NAME
is
null
.
IS_OS_WINDOWS_XP
public static final boolean IS_OS_WINDOWS_XP
Is
true
if this is Windows XP.
The field will return
false
if
OS_NAME
is
null
.
JAVA_AWT_FONTS
public static final String JAVA_AWT_FONTS
The
java.awt.fonts
System Property.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_AWT_GRAPHICSENV
public static final String JAVA_AWT_GRAPHICSENV
The
java.awt.graphicsenv
System Property.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_AWT_HEADLESS
public static final String JAVA_AWT_HEADLESS
The
java.awt.headless
System Property.
The value of this property is the String
"true"
or
"false"
.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_AWT_PRINTERJOB
public static final String JAVA_AWT_PRINTERJOB
The
java.awt.printerjob
System Property.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_CLASS_PATH
public static final String JAVA_CLASS_PATH
The
java.class.path
System Property. Java class path.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_CLASS_VERSION
public static final String JAVA_CLASS_VERSION
The
java.class.version
System Property.
Java class format version number.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_COMPILER
public static final String JAVA_COMPILER
The
java.compiler
System Property. Name of JIT compiler to use.
First in JDK version 1.2. Not used in Sun JDKs after 1.2.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
- Java 1.2. Not used in Sun versions after 1.2.
JAVA_ENDORSED_DIRS
public static final String JAVA_ENDORSED_DIRS
The
java.endorsed.dirs
System Property. Path of endorsed directory
or directories.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_EXT_DIRS
public static final String JAVA_EXT_DIRS
The
java.ext.dirs
System Property. Path of extension directory
or directories.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_HOME
public static final String JAVA_HOME
The
java.home
System Property. Java installation directory.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_IO_TMPDIR
public static final String JAVA_IO_TMPDIR
The
java.io.tmpdir
System Property. Default temp file path.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_LIBRARY_PATH
public static final String JAVA_LIBRARY_PATH
The
java.library.path
System Property. List of paths to search
when loading libraries.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_RUNTIME_NAME
public static final String JAVA_RUNTIME_NAME
The
java.runtime.name
System Property. Java Runtime Environment
name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_RUNTIME_VERSION
public static final String JAVA_RUNTIME_VERSION
The
java.runtime.version
System Property. Java Runtime Environment
version.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_SPECIFICATION_NAME
public static final String JAVA_SPECIFICATION_NAME
The
java.specification.name
System Property. Java Runtime Environment
specification name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_SPECIFICATION_VENDOR
public static final String JAVA_SPECIFICATION_VENDOR
The
java.specification.vendor
System Property. Java Runtime Environment
specification vendor.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_SPECIFICATION_VERSION
public static final String JAVA_SPECIFICATION_VERSION
The
java.specification.version
System Property. Java Runtime Environment
specification version.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_UTIL_PREFS_PREFERENCES_FACTORY
public static final String JAVA_UTIL_PREFS_PREFERENCES_FACTORY
The
java.util.prefs.PreferencesFactory
System Property. A class name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VENDOR
public static final String JAVA_VENDOR
The
java.vendor
System Property. Java vendor-specific string.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VENDOR_URL
public static final String JAVA_VENDOR_URL
The
java.vendor.url
System Property. Java vendor URL.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VERSION
public static final String JAVA_VERSION
The
java.version
System Property. Java version number.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VERSION_FLOAT
public static final float JAVA_VERSION_FLOAT
Gets the Java version as a
float
.
Example return values:
1.2f
for JDK 1.2
1.31f
for JDK 1.3.1
The field will return zero if
JAVA_VERSION
is
null
.
JAVA_VERSION_INT
public static final int JAVA_VERSION_INT
Gets the Java version as an
int
.
Example return values:
120
for JDK 1.2
131
for JDK 1.3.1
The field will return zero if
JAVA_VERSION
is
null
.
JAVA_VERSION_TRIMMED
public static final String JAVA_VERSION_TRIMMED
Gets the Java version as a
String
trimming leading letters.
The field will return
null
if
JAVA_VERSION
is
null
.
JAVA_VM_INFO
public static final String JAVA_VM_INFO
The
java.vm.info
System Property. Java Virtual Machine implementation
info.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_NAME
public static final String JAVA_VM_NAME
The
java.vm.name
System Property. Java Virtual Machine implementation
name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_SPECIFICATION_NAME
public static final String JAVA_VM_SPECIFICATION_NAME
The
java.vm.specification.name
System Property. Java Virtual Machine
specification name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_SPECIFICATION_VENDOR
public static final String JAVA_VM_SPECIFICATION_VENDOR
The
java.vm.specification.vendor
System Property. Java Virtual
Machine specification vendor.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_SPECIFICATION_VERSION
public static final String JAVA_VM_SPECIFICATION_VERSION
The
java.vm.specification.version
System Property. Java Virtual Machine
specification version.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_VENDOR
public static final String JAVA_VM_VENDOR
The
java.vm.vendor
System Property. Java Virtual Machine implementation
vendor.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
JAVA_VM_VERSION
public static final String JAVA_VM_VERSION
The
java.vm.version
System Property. Java Virtual Machine
implementation version.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
LINE_SEPARATOR
public static final String LINE_SEPARATOR
The
line.separator
System Property. Line separator
(
"\n"
on UNIX).
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
OS_ARCH
public static final String OS_ARCH
The
os.arch
System Property. Operating system architecture.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
OS_NAME
public static final String OS_NAME
The
os.name
System Property. Operating system name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
OS_VERSION
public static final String OS_VERSION
The
os.version
System Property. Operating system version.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
PATH_SEPARATOR
public static final String PATH_SEPARATOR
The
path.separator
System Property. Path separator
(
":"
on UNIX).
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_COUNTRY
public static final String USER_COUNTRY
The
user.country
or
user.region
System Property.
User's country code, such as
GB
. First in JDK version 1.2 as
user.region
. Renamed to
user.country
in 1.4
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_DIR
public static final String USER_DIR
The
user.dir
System Property. User's current working
directory.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_HOME
public static final String USER_HOME
The
user.home
System Property. User's home directory.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_LANGUAGE
public static final String USER_LANGUAGE
The
user.language
System Property. User's language code,
such as
"en"
.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_NAME
public static final String USER_NAME
The
user.name
System Property. User's account name.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.
USER_TIMEZONE
public static final String USER_TIMEZONE
The
user.timezone
System Property.
For example:
"America/Los_Angeles"
.
Defaults to
null
if the runtime does not have
security access to read this property or the property does not exist.
This value is initialized when the class is loaded. If
System.setProperty(String,String)
or
System.setProperties(java.util.Properties)
is called after this class is loaded, the value
will be out of sync with that System property.