Java org.apache.commons.lang SystemUtils fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for org.apache.commons.lang SystemUtils.

The text is from its open source code.

Subclass

org.apache.commons.lang.SystemUtils has subclasses.
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Field

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.
String	FILE_SEPARATOR The `file.separator` System Property.
String	JAVA_CLASS_PATH The `java.class.path` System Property.
String	JAVA_EXT_DIRS The `java.ext.dirs` System Property.
String	JAVA_HOME The `java.home` System Property.
String	JAVA_IO_TMPDIR The `java.io.tmpdir` System Property.
String	JAVA_LIBRARY_PATH The `java.library.path` System Property.
String	JAVA_RUNTIME_NAME The `java.runtime.name` System Property.
String	JAVA_RUNTIME_VERSION The `java.runtime.version` System Property.
String	JAVA_VENDOR The `java.vendor` System Property.
String	JAVA_VENDOR_URL The `java.vendor.url` System Property.
String	JAVA_VERSION The `java.version` System Property.
String	JAVA_VM_INFO The `java.vm.info` System Property.
String	JAVA_VM_NAME The `java.vm.name` System Property.
String	JAVA_VM_VENDOR The `java.vm.vendor` System Property.
String	LINE_SEPARATOR The `line.separator` System Property.
String	OS_ARCH The `os.arch` System Property.
String	OS_NAME The `os.name` System Property.
String	OS_VERSION The `os.version` System Property.
String	PATH_SEPARATOR The `path.separator` System Property.
String	USER_DIR The `user.dir` System Property.
String	USER_HOME The `user.home` System Property.
String	USER_LANGUAGE The `user.language` System Property.
String	USER_NAME The `user.name` System Property.
String	USER_TIMEZONE The `user.timezone` System Property.
String	JAVA_VERSION_TRIMMED Gets the Java version as a `String` trimming leading letters. The field will return `null` if #JAVA_VERSION is `null`.
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`.
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`.
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`.
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`.
boolean	IS_JAVA_1_6 Is `true` if this is Java version 1.6 (also 1.6.x versions). The field will return `false` if #JAVA_VERSION is `null`.
boolean	IS_OS_AIX Is `true` if this is AIX. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_HP_UX Is `true` if this is HP-UX. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_IRIX Is `true` if this is Irix. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_LINUX Is `true` if this is Linux. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_MAC Is `true` if this is Mac. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_MAC_OSX Is `true` if this is Mac. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_SOLARIS Is `true` if this is Solaris. The field will return `false` if `OS_NAME` is `null`.
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`.
boolean	IS_OS_WINDOWS Is `true` if this is Windows. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_2000 Is `true` if this is Windows 2000. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_95 Is `true` if this is Windows 95. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_98 Is `true` if this is Windows 98. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_ME Is `true` if this is Windows ME. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_NT Is `true` if this is Windows NT. The field will return `false` if `OS_NAME` is `null`.
boolean	IS_OS_WINDOWS_XP Is `true` if this is Windows XP. The field will return `false` if `OS_NAME` is `null`.

Method

File	getJavaHome() Gets the Java home directory as a `File`.
File	getJavaIoTmpDir() Gets the Java IO temporary directory as a `File`.
File	getUserDir() Gets the user directory as a `File`.
File	getUserHome() Gets the user home directory as a `File`.
boolean	isJavaAwtHeadless() Returns whether the #JAVA_AWT_HEADLESS value is `true`.
boolean	isJavaVersionAtLeast(float requiredVersion) Is the Java version at least the requested version. Example input: `1.2f` to test for JDK 1.2 `1.31f` to test for JDK 1.3.1
boolean	isJavaVersionAtLeast(int requiredVersion) Is the Java version at least the requested version. Example input: `120` to test for JDK 1.2 or greater `131` to test for JDK 1.3.1 or greater