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8 SystemUtils (Commons Lang 2.4 API)
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74 SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
76 DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD>
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84 <H2>
86 org.apache.commons.lang</FONT>
87 <BR>
88 Class SystemUtils</H2>
89 <PRE>
90 java.lang.Object
91 <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>org.apache.commons.lang.SystemUtils</B>
92 </PRE>
93 <HR>
94 <DL>
97 <P>
100 <p>If a system property cannot be read due to security restrictions,
103 <P>
105 <P>
106 <DL>
112 <DD>Based on code from Avalon Excalibur, Based on code from Lucene, Stephen Colebourne, <a href="mailto:sdowney@panix.com">Steve Downey</a>, Gary Gregory, Michael Becke, Tetsuya Kaneuchi, Rafal Krupinski, Jason Gritman</DD>
113 </DL>
114 <HR>
116 <P>
117 <!-- ======== NESTED CLASS SUMMARY ======== -->
120 <!-- =========== FIELD SUMMARY =========== -->
127 </TR>
131 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#AWT_TOOLKIT">AWT_TOOLKIT</A></B></CODE>
133 <BR>
134 The <code>awt.toolkit</code> System Property.</TD>
135 </TR>
139 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#FILE_ENCODING">FILE_ENCODING</A></B></CODE>
141 <BR>
142 The <code>file.encoding</code> System Property.</TD>
143 </TR>
147 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#FILE_SEPARATOR">FILE_SEPARATOR</A></B></CODE>
149 <BR>
150 The <code>file.separator</code> System Property.</TD>
151 </TR>
155 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_1">IS_JAVA_1_1</A></B></CODE>
157 <BR>
158 Is <code>true</code> if this is Java version 1.1 (also 1.1.x versions).</TD>
159 </TR>
163 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_2">IS_JAVA_1_2</A></B></CODE>
165 <BR>
166 Is <code>true</code> if this is Java version 1.2 (also 1.2.x versions).</TD>
167 </TR>
171 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_3">IS_JAVA_1_3</A></B></CODE>
173 <BR>
174 Is <code>true</code> if this is Java version 1.3 (also 1.3.x versions).</TD>
175 </TR>
179 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_4">IS_JAVA_1_4</A></B></CODE>
181 <BR>
182 Is <code>true</code> if this is Java version 1.4 (also 1.4.x versions).</TD>
183 </TR>
187 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_5">IS_JAVA_1_5</A></B></CODE>
189 <BR>
190 Is <code>true</code> if this is Java version 1.5 (also 1.5.x versions).</TD>
191 </TR>
195 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_JAVA_1_6">IS_JAVA_1_6</A></B></CODE>
197 <BR>
198 Is <code>true</code> if this is Java version 1.6 (also 1.6.x versions).</TD>
199 </TR>
203 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_AIX">IS_OS_AIX</A></B></CODE>
205 <BR>
206 Is <code>true</code> if this is AIX.</TD>
207 </TR>
211 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_HP_UX">IS_OS_HP_UX</A></B></CODE>
213 <BR>
214 Is <code>true</code> if this is HP-UX.</TD>
215 </TR>
219 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_IRIX">IS_OS_IRIX</A></B></CODE>
221 <BR>
222 Is <code>true</code> if this is Irix.</TD>
223 </TR>
227 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_LINUX">IS_OS_LINUX</A></B></CODE>
229 <BR>
230 Is <code>true</code> if this is Linux.</TD>
231 </TR>
235 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_MAC">IS_OS_MAC</A></B></CODE>
237 <BR>
238 Is <code>true</code> if this is Mac.</TD>
239 </TR>
243 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_MAC_OSX">IS_OS_MAC_OSX</A></B></CODE>
245 <BR>
246 Is <code>true</code> if this is Mac.</TD>
247 </TR>
251 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_OS2">IS_OS_OS2</A></B></CODE>
253 <BR>
254 Is <code>true</code> if this is OS/2.</TD>
255 </TR>
259 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_SOLARIS">IS_OS_SOLARIS</A></B></CODE>
261 <BR>
262 Is <code>true</code> if this is Solaris.</TD>
263 </TR>
267 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_SUN_OS">IS_OS_SUN_OS</A></B></CODE>
269 <BR>
270 Is <code>true</code> if this is SunOS.</TD>
271 </TR>
275 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_UNIX">IS_OS_UNIX</A></B></CODE>
277 <BR>
278 Is <code>true</code> if this is a POSIX compilant system,
279 as in any of AIX, HP-UX, Irix, Linux, MacOSX, Solaris or SUN OS.</TD>
280 </TR>
284 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS">IS_OS_WINDOWS</A></B></CODE>
286 <BR>
287 Is <code>true</code> if this is Windows.</TD>
288 </TR>
292 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_2000">IS_OS_WINDOWS_2000</A></B></CODE>
294 <BR>
295 Is <code>true</code> if this is Windows 2000.</TD>
296 </TR>
300 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_95">IS_OS_WINDOWS_95</A></B></CODE>
302 <BR>
303 Is <code>true</code> if this is Windows 95.</TD>
304 </TR>
308 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_98">IS_OS_WINDOWS_98</A></B></CODE>
310 <BR>
311 Is <code>true</code> if this is Windows 98.</TD>
312 </TR>
316 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_ME">IS_OS_WINDOWS_ME</A></B></CODE>
318 <BR>
319 Is <code>true</code> if this is Windows ME.</TD>
320 </TR>
324 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_NT">IS_OS_WINDOWS_NT</A></B></CODE>
326 <BR>
327 Is <code>true</code> if this is Windows NT.</TD>
328 </TR>
332 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_VISTA">IS_OS_WINDOWS_VISTA</A></B></CODE>
334 <BR>
335 Is <code>true</code> if this is Windows Vista.</TD>
336 </TR>
340 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#IS_OS_WINDOWS_XP">IS_OS_WINDOWS_XP</A></B></CODE>
342 <BR>
343 Is <code>true</code> if this is Windows XP.</TD>
344 </TR>
348 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_FONTS">JAVA_AWT_FONTS</A></B></CODE>
350 <BR>
351 The <code>java.awt.fonts</code> System Property.</TD>
352 </TR>
356 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_GRAPHICSENV">JAVA_AWT_GRAPHICSENV</A></B></CODE>
358 <BR>
359 The <code>java.awt.graphicsenv</code> System Property.</TD>
360 </TR>
364 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_HEADLESS">JAVA_AWT_HEADLESS</A></B></CODE>
366 <BR>
367
369 </TR>
373 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_PRINTERJOB">JAVA_AWT_PRINTERJOB</A></B></CODE>
375 <BR>
376 The <code>java.awt.printerjob</code> System Property.</TD>
377 </TR>
381 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_CLASS_PATH">JAVA_CLASS_PATH</A></B></CODE>
383 <BR>
384 The <code>java.class.path</code> System Property.</TD>
385 </TR>
389 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_CLASS_VERSION">JAVA_CLASS_VERSION</A></B></CODE>
391 <BR>
392 The <code>java.class.version</code> System Property.</TD>
393 </TR>
397 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_COMPILER">JAVA_COMPILER</A></B></CODE>
399 <BR>
400 The <code>java.compiler</code> System Property.</TD>
401 </TR>
405 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_ENDORSED_DIRS">JAVA_ENDORSED_DIRS</A></B></CODE>
407 <BR>
408 The <code>java.endorsed.dirs</code> System Property.</TD>
409 </TR>
413 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_EXT_DIRS">JAVA_EXT_DIRS</A></B></CODE>
415 <BR>
416 The <code>java.ext.dirs</code> System Property.</TD>
417 </TR>
421 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_HOME">JAVA_HOME</A></B></CODE>
423 <BR>
424 The <code>java.home</code> System Property.</TD>
425 </TR>
429 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_IO_TMPDIR">JAVA_IO_TMPDIR</A></B></CODE>
431 <BR>
432 The <code>java.io.tmpdir</code> System Property.</TD>
433 </TR>
437 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_LIBRARY_PATH">JAVA_LIBRARY_PATH</A></B></CODE>
439 <BR>
440 The <code>java.library.path</code> System Property.</TD>
441 </TR>
445 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_RUNTIME_NAME">JAVA_RUNTIME_NAME</A></B></CODE>
447 <BR>
448 The <code>java.runtime.name</code> System Property.</TD>
449 </TR>
453 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_RUNTIME_VERSION">JAVA_RUNTIME_VERSION</A></B></CODE>
455 <BR>
456 The <code>java.runtime.version</code> System Property.</TD>
457 </TR>
461 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_SPECIFICATION_NAME">JAVA_SPECIFICATION_NAME</A></B></CODE>
463 <BR>
464 The <code>java.specification.name</code> System Property.</TD>
465 </TR>
469 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_SPECIFICATION_VENDOR">JAVA_SPECIFICATION_VENDOR</A></B></CODE>
471 <BR>
472 The <code>java.specification.vendor</code> System Property.</TD>
473 </TR>
477 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_SPECIFICATION_VERSION">JAVA_SPECIFICATION_VERSION</A></B></CODE>
479 <BR>
480 The <code>java.specification.version</code> System Property.</TD>
481 </TR>
485 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_UTIL_PREFS_PREFERENCES_FACTORY">JAVA_UTIL_PREFS_PREFERENCES_FACTORY</A></B></CODE>
487 <BR>
488 The <code>java.util.prefs.PreferencesFactory</code> System Property.</TD>
489 </TR>
493 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VENDOR">JAVA_VENDOR</A></B></CODE>
495 <BR>
496 The <code>java.vendor</code> System Property.</TD>
497 </TR>
501 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VENDOR_URL">JAVA_VENDOR_URL</A></B></CODE>
503 <BR>
504 The <code>java.vendor.url</code> System Property.</TD>
505 </TR>
509 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION">JAVA_VERSION</A></B></CODE>
511 <BR>
512 The <code>java.version</code> System Property.</TD>
513 </TR>
517 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION_FLOAT">JAVA_VERSION_FLOAT</A></B></CODE>
519 <BR>
520 Gets the Java version as a <code>float</code>.</TD>
521 </TR>
525 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION_INT">JAVA_VERSION_INT</A></B></CODE>
527 <BR>
528 Gets the Java version as an <code>int</code>.</TD>
529 </TR>
533 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION_TRIMMED">JAVA_VERSION_TRIMMED</A></B></CODE>
535 <BR>
536 Gets the Java version as a <code>String</code> trimming leading letters.</TD>
537 </TR>
541 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_INFO">JAVA_VM_INFO</A></B></CODE>
543 <BR>
544 The <code>java.vm.info</code> System Property.</TD>
545 </TR>
549 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_NAME">JAVA_VM_NAME</A></B></CODE>
551 <BR>
552 The <code>java.vm.name</code> System Property.</TD>
553 </TR>
557 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_SPECIFICATION_NAME">JAVA_VM_SPECIFICATION_NAME</A></B></CODE>
559 <BR>
560 The <code>java.vm.specification.name</code> System Property.</TD>
561 </TR>
565 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_SPECIFICATION_VENDOR">JAVA_VM_SPECIFICATION_VENDOR</A></B></CODE>
567 <BR>
568 The <code>java.vm.specification.vendor</code> System Property.</TD>
569 </TR>
573 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_SPECIFICATION_VERSION">JAVA_VM_SPECIFICATION_VERSION</A></B></CODE>
575 <BR>
576 The <code>java.vm.specification.version</code> System Property.</TD>
577 </TR>
581 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_VENDOR">JAVA_VM_VENDOR</A></B></CODE>
583 <BR>
584 The <code>java.vm.vendor</code> System Property.</TD>
585 </TR>
589 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VM_VERSION">JAVA_VM_VERSION</A></B></CODE>
591 <BR>
592 The <code>java.vm.version</code> System Property.</TD>
593 </TR>
597 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#LINE_SEPARATOR">LINE_SEPARATOR</A></B></CODE>
599 <BR>
600 The <code>line.separator</code> System Property.</TD>
601 </TR>
605 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#OS_ARCH">OS_ARCH</A></B></CODE>
607 <BR>
608 The <code>os.arch</code> System Property.</TD>
609 </TR>
613 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#OS_NAME">OS_NAME</A></B></CODE>
615 <BR>
616 The <code>os.name</code> System Property.</TD>
617 </TR>
621 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#OS_VERSION">OS_VERSION</A></B></CODE>
623 <BR>
624 The <code>os.version</code> System Property.</TD>
625 </TR>
629 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#PATH_SEPARATOR">PATH_SEPARATOR</A></B></CODE>
631 <BR>
632 The <code>path.separator</code> System Property.</TD>
633 </TR>
637 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_COUNTRY">USER_COUNTRY</A></B></CODE>
639 <BR>
640 The <code>user.country</code> or <code>user.region</code> System Property.</TD>
641 </TR>
645 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_DIR">USER_DIR</A></B></CODE>
647 <BR>
648 The <code>user.dir</code> System Property.</TD>
649 </TR>
653 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_HOME">USER_HOME</A></B></CODE>
655 <BR>
656 The <code>user.home</code> System Property.</TD>
657 </TR>
661 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_LANGUAGE">USER_LANGUAGE</A></B></CODE>
663 <BR>
664 The <code>user.language</code> System Property.</TD>
665 </TR>
669 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_NAME">USER_NAME</A></B></CODE>
671 <BR>
672 The <code>user.name</code> System Property.</TD>
673 </TR>
677 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#USER_TIMEZONE">USER_TIMEZONE</A></B></CODE>
679 <BR>
680 The <code>user.timezone</code> System Property.</TD>
681 </TR>
682 </TABLE>
683
684 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
691 </TR>
693 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#SystemUtils()">SystemUtils</A></B>()</CODE>
695 <BR>
696 SystemUtils instances should NOT be constructed in standard
697 programming.</TD>
698 </TR>
699 </TABLE>
700
701 <!-- ========== METHOD SUMMARY =========== -->
708 </TR>
712 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#getJavaHome()">getJavaHome</A></B>()</CODE>
714 <BR>
715 Gets the Java home directory as a <code>File</code>.</TD>
716 </TR>
720 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#getJavaIoTmpDir()">getJavaIoTmpDir</A></B>()</CODE>
722 <BR>
723 Gets the Java IO temporary directory as a <code>File</code>.</TD>
724 </TR>
728 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#getJavaVersion()">getJavaVersion</A></B>()</CODE>
730 <BR>
731 <B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION_FLOAT"><CODE>JAVA_VERSION_FLOAT</CODE></A> instead.
733 </TR>
737 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#getUserDir()">getUserDir</A></B>()</CODE>
739 <BR>
740 Gets the user directory as a <code>File</code>.</TD>
741 </TR>
745 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#getUserHome()">getUserHome</A></B>()</CODE>
747 <BR>
748 Gets the user home directory as a <code>File</code>.</TD>
749 </TR>
753 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#isJavaAwtHeadless()">isJavaAwtHeadless</A></B>()</CODE>
755 <BR>
756 Returns whether the <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_HEADLESS"><CODE>JAVA_AWT_HEADLESS</CODE></A> value is <code>true</code>.</TD>
757 </TR>
761 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#isJavaVersionAtLeast(float)">isJavaVersionAtLeast</A></B>(float requiredVersion)</CODE>
763 <BR>
764 Is the Java version at least the requested version.</TD>
765 </TR>
769 <TD><CODE><B><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#isJavaVersionAtLeast(int)">isJavaVersionAtLeast</A></B>(int requiredVersion)</CODE>
771 <BR>
772 Is the Java version at least the requested version.</TD>
773 </TR>
774 </TABLE>
779 </TR>
781 <TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
782 </TR>
783 </TABLE>
784
785 <P>
787 <!-- ============ FIELD DETAIL =========== -->
794 </TR>
795 </TABLE>
798 AWT_TOOLKIT</H3>
799 <PRE>
801 <DL>
807 security access to read this property or the property does not exist.</p>
809 <p>
810 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
811 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
812 will be out of sync with that System property.
813 </p>
814 <P>
815 <DL>
818 </DL>
819 </DL>
820 <HR>
823 FILE_ENCODING</H3>
824 <PRE>
826 <DL>
831 security access to read this property or the property does not exist.</p>
833 <p>
834 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
835 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
836 will be out of sync with that System property.
837 </p>
838 <P>
839 <DL>
842 </DL>
843 </DL>
844 <HR>
847 FILE_SEPARATOR</H3>
848 <PRE>
850 <DL>
855 security access to read this property or the property does not exist.</p>
857 <p>
858 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
859 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
860 will be out of sync with that System property.
861 </p>
862 <P>
863 <DL>
866 </DL>
867 </DL>
868 <HR>
871 JAVA_AWT_FONTS</H3>
872 <PRE>
874 <DL>
878 security access to read this property or the property does not exist.</p>
880 <p>
881 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
882 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
883 will be out of sync with that System property.
884 </p>
885 <P>
886 <DL>
889 </DL>
890 </DL>
891 <HR>
894 JAVA_AWT_GRAPHICSENV</H3>
895 <PRE>
897 <DL>
901 security access to read this property or the property does not exist.</p>
903 <p>
904 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
905 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
906 will be out of sync with that System property.
907 </p>
908 <P>
909 <DL>
912 </DL>
913 </DL>
914 <HR>
917 JAVA_AWT_HEADLESS</H3>
918 <PRE>
920 <DL>
921 <DD><p>
924 </p>
927 security access to read this property or the property does not exist.</p>
929 <p>
930 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
931 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
932 will be out of sync with that System property.
933 </p>
934 <P>
935 <DL>
938 <DT><B>See Also:</B><DD><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#isJavaAwtHeadless()"><CODE>isJavaAwtHeadless()</CODE></A></DL>
939 </DL>
940 <HR>
943 JAVA_AWT_PRINTERJOB</H3>
944 <PRE>
946 <DL>
950 security access to read this property or the property does not exist.</p>
952 <p>
953 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
954 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
955 will be out of sync with that System property.
956 </p>
957 <P>
958 <DL>
961 </DL>
962 </DL>
963 <HR>
966 JAVA_CLASS_PATH</H3>
967 <PRE>
969 <DL>
973 security access to read this property or the property does not exist.</p>
975 <p>
976 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
977 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
978 will be out of sync with that System property.
979 </p>
980 <P>
981 <DL>
984 </DL>
985 </DL>
986 <HR>
989 JAVA_CLASS_VERSION</H3>
990 <PRE>
992 <DL>
994 Java class format version number.</p>
997 security access to read this property or the property does not exist.</p>
999 <p>
1000 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1001 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1002 will be out of sync with that System property.
1003 </p>
1004 <P>
1005 <DL>
1008 </DL>
1009 </DL>
1010 <HR>
1013 JAVA_COMPILER</H3>
1014 <PRE>
1016 <DL>
1021 security access to read this property or the property does not exist.</p>
1023 <p>
1024 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1025 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1026 will be out of sync with that System property.
1027 </p>
1028 <P>
1029 <DL>
1032 </DL>
1033 </DL>
1034 <HR>
1037 JAVA_ENDORSED_DIRS</H3>
1038 <PRE>
1040 <DL>
1042 or directories.</p>
1045 security access to read this property or the property does not exist.</p>
1047 <p>
1048 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1049 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1050 will be out of sync with that System property.
1051 </p>
1052 <P>
1053 <DL>
1056 </DL>
1057 </DL>
1058 <HR>
1061 JAVA_EXT_DIRS</H3>
1062 <PRE>
1064 <DL>
1066 or directories.</p>
1069 security access to read this property or the property does not exist.</p>
1071 <p>
1072 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1073 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1074 will be out of sync with that System property.
1075 </p>
1076 <P>
1077 <DL>
1080 </DL>
1081 </DL>
1082 <HR>
1085 JAVA_HOME</H3>
1086 <PRE>
1088 <DL>
1092 security access to read this property or the property does not exist.</p>
1094 <p>
1095 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1096 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1097 will be out of sync with that System property.
1098 </p>
1099 <P>
1100 <DL>
1103 </DL>
1104 </DL>
1105 <HR>
1108 JAVA_IO_TMPDIR</H3>
1109 <PRE>
1111 <DL>
1115 security access to read this property or the property does not exist.</p>
1117 <p>
1118 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1119 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1120 will be out of sync with that System property.
1121 </p>
1122 <P>
1123 <DL>
1126 </DL>
1127 </DL>
1128 <HR>
1131 JAVA_LIBRARY_PATH</H3>
1132 <PRE>
1134 <DL>
1136 when loading libraries.</p>
1139 security access to read this property or the property does not exist.</p>
1141 <p>
1142 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1143 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1144 will be out of sync with that System property.
1145 </p>
1146 <P>
1147 <DL>
1150 </DL>
1151 </DL>
1152 <HR>
1155 JAVA_RUNTIME_NAME</H3>
1156 <PRE>
1158 <DL>
1160 name.</p>
1163 security access to read this property or the property does not exist.</p>
1165 <p>
1166 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1167 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1168 will be out of sync with that System property.
1169 </p>
1170 <P>
1171 <DL>
1174 </DL>
1175 </DL>
1176 <HR>
1179 JAVA_RUNTIME_VERSION</H3>
1180 <PRE>
1182 <DL>
1184 version.</p>
1187 security access to read this property or the property does not exist.</p>
1189 <p>
1190 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1191 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1192 will be out of sync with that System property.
1193 </p>
1194 <P>
1195 <DL>
1198 </DL>
1199 </DL>
1200 <HR>
1203 JAVA_SPECIFICATION_NAME</H3>
1204 <PRE>
1206 <DL>
1208 specification name.</p>
1211 security access to read this property or the property does not exist.</p>
1213 <p>
1214 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1215 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1216 will be out of sync with that System property.
1217 </p>
1218 <P>
1219 <DL>
1222 </DL>
1223 </DL>
1224 <HR>
1227 JAVA_SPECIFICATION_VENDOR</H3>
1228 <PRE>
1230 <DL>
1232 specification vendor.</p>
1235 security access to read this property or the property does not exist.</p>
1237 <p>
1238 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1239 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1240 will be out of sync with that System property.
1241 </p>
1242 <P>
1243 <DL>
1246 </DL>
1247 </DL>
1248 <HR>
1251 JAVA_SPECIFICATION_VERSION</H3>
1252 <PRE>
1254 <DL>
1256 specification version.</p>
1259 security access to read this property or the property does not exist.</p>
1261 <p>
1262 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1263 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1264 will be out of sync with that System property.
1265 </p>
1266 <P>
1267 <DL>
1270 </DL>
1271 </DL>
1272 <HR>
1275 JAVA_UTIL_PREFS_PREFERENCES_FACTORY</H3>
1276 <PRE>
1278 <DL>
1282 security access to read this property or the property does not exist.</p>
1284 <p>
1285 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1286 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1287 will be out of sync with that System property.
1288 </p>
1289 <P>
1290 <DL>
1293 </DL>
1294 </DL>
1295 <HR>
1298 JAVA_VENDOR</H3>
1299 <PRE>
1301 <DL>
1305 security access to read this property or the property does not exist.</p>
1307 <p>
1308 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1309 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1310 will be out of sync with that System property.
1311 </p>
1312 <P>
1313 <DL>
1316 </DL>
1317 </DL>
1318 <HR>
1321 JAVA_VENDOR_URL</H3>
1322 <PRE>
1324 <DL>
1328 security access to read this property or the property does not exist.</p>
1330 <p>
1331 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1332 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1333 will be out of sync with that System property.
1334 </p>
1335 <P>
1336 <DL>
1339 </DL>
1340 </DL>
1341 <HR>
1344 JAVA_VERSION</H3>
1345 <PRE>
1347 <DL>
1351 security access to read this property or the property does not exist.</p>
1353 <p>
1354 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1355 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1356 will be out of sync with that System property.
1357 </p>
1358 <P>
1359 <DL>
1362 </DL>
1363 </DL>
1364 <HR>
1367 JAVA_VM_INFO</H3>
1368 <PRE>
1370 <DL>
1372 info.</p>
1375 security access to read this property or the property does not exist.</p>
1377 <p>
1378 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1379 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1380 will be out of sync with that System property.
1381 </p>
1382 <P>
1383 <DL>
1386 </DL>
1387 </DL>
1388 <HR>
1391 JAVA_VM_NAME</H3>
1392 <PRE>
1394 <DL>
1396 name.</p>
1399 security access to read this property or the property does not exist.</p>
1401 <p>
1402 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1403 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1404 will be out of sync with that System property.
1405 </p>
1406 <P>
1407 <DL>
1410 </DL>
1411 </DL>
1412 <HR>
1415 JAVA_VM_SPECIFICATION_NAME</H3>
1416 <PRE>
1418 <DL>
1420 specification name.</p>
1423 security access to read this property or the property does not exist.</p>
1425 <p>
1426 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1427 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1428 will be out of sync with that System property.
1429 </p>
1430 <P>
1431 <DL>
1434 </DL>
1435 </DL>
1436 <HR>
1439 JAVA_VM_SPECIFICATION_VENDOR</H3>
1440 <PRE>
1442 <DL>
1444 Machine specification vendor.</p>
1447 security access to read this property or the property does not exist.</p>
1449 <p>
1450 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1451 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1452 will be out of sync with that System property.
1453 </p>
1454 <P>
1455 <DL>
1458 </DL>
1459 </DL>
1460 <HR>
1463 JAVA_VM_SPECIFICATION_VERSION</H3>
1464 <PRE>
1466 <DL>
1468 specification version.</p>
1471 security access to read this property or the property does not exist.</p>
1473 <p>
1474 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1475 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1476 will be out of sync with that System property.
1477 </p>
1478 <P>
1479 <DL>
1482 </DL>
1483 </DL>
1484 <HR>
1487 JAVA_VM_VENDOR</H3>
1488 <PRE>
1490 <DL>
1492 vendor.</p>
1495 security access to read this property or the property does not exist.</p>
1497 <p>
1498 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1499 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1500 will be out of sync with that System property.
1501 </p>
1502 <P>
1503 <DL>
1506 </DL>
1507 </DL>
1508 <HR>
1511 JAVA_VM_VERSION</H3>
1512 <PRE>
1514 <DL>
1516 implementation version.</p>
1519 security access to read this property or the property does not exist.</p>
1521 <p>
1522 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1523 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1524 will be out of sync with that System property.
1525 </p>
1526 <P>
1527 <DL>
1530 </DL>
1531 </DL>
1532 <HR>
1535 LINE_SEPARATOR</H3>
1536 <PRE>
1538 <DL>
1543 security access to read this property or the property does not exist.</p>
1545 <p>
1546 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1547 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1548 will be out of sync with that System property.
1549 </p>
1550 <P>
1551 <DL>
1554 </DL>
1555 </DL>
1556 <HR>
1559 OS_ARCH</H3>
1560 <PRE>
1562 <DL>
1566 security access to read this property or the property does not exist.</p>
1568 <p>
1569 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1570 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1571 will be out of sync with that System property.
1572 </p>
1573 <P>
1574 <DL>
1577 </DL>
1578 </DL>
1579 <HR>
1582 OS_NAME</H3>
1583 <PRE>
1585 <DL>
1589 security access to read this property or the property does not exist.</p>
1591 <p>
1592 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1593 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1594 will be out of sync with that System property.
1595 </p>
1596 <P>
1597 <DL>
1600 </DL>
1601 </DL>
1602 <HR>
1605 OS_VERSION</H3>
1606 <PRE>
1608 <DL>
1612 security access to read this property or the property does not exist.</p>
1614 <p>
1615 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1616 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1617 will be out of sync with that System property.
1618 </p>
1619 <P>
1620 <DL>
1623 </DL>
1624 </DL>
1625 <HR>
1628 PATH_SEPARATOR</H3>
1629 <PRE>
1631 <DL>
1636 security access to read this property or the property does not exist.</p>
1638 <p>
1639 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1640 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1641 will be out of sync with that System property.
1642 </p>
1643 <P>
1644 <DL>
1647 </DL>
1648 </DL>
1649 <HR>
1652 USER_COUNTRY</H3>
1653 <PRE>
1655 <DL>
1661 security access to read this property or the property does not exist.</p>
1663 <p>
1664 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1665 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1666 will be out of sync with that System property.
1667 </p>
1668 <P>
1669 <DL>
1672 </DL>
1673 </DL>
1674 <HR>
1677 USER_DIR</H3>
1678 <PRE>
1680 <DL>
1682 directory.</p>
1685 security access to read this property or the property does not exist.</p>
1687 <p>
1688 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1689 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1690 will be out of sync with that System property.
1691 </p>
1692 <P>
1693 <DL>
1696 </DL>
1697 </DL>
1698 <HR>
1701 USER_HOME</H3>
1702 <PRE>
1704 <DL>
1708 security access to read this property or the property does not exist.</p>
1710 <p>
1711 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1712 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1713 will be out of sync with that System property.
1714 </p>
1715 <P>
1716 <DL>
1719 </DL>
1720 </DL>
1721 <HR>
1724 USER_LANGUAGE</H3>
1725 <PRE>
1727 <DL>
1732 security access to read this property or the property does not exist.</p>
1734 <p>
1735 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1736 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1737 will be out of sync with that System property.
1738 </p>
1739 <P>
1740 <DL>
1743 </DL>
1744 </DL>
1745 <HR>
1748 USER_NAME</H3>
1749 <PRE>
1751 <DL>
1755 security access to read this property or the property does not exist.</p>
1757 <p>
1758 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1759 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1760 will be out of sync with that System property.
1761 </p>
1762 <P>
1763 <DL>
1766 </DL>
1767 </DL>
1768 <HR>
1771 USER_TIMEZONE</H3>
1772 <PRE>
1774 <DL>
1779 security access to read this property or the property does not exist.</p>
1781 <p>
1782 This value is initialized when the class is loaded. If <CODE>System.setProperty(String,String)</CODE>
1783 or <CODE>System.setProperties(java.util.Properties)</CODE> is called after this class is loaded, the value
1784 will be out of sync with that System property.
1785 </p>
1786 <P>
1787 <DL>
1790 </DL>
1791 </DL>
1792 <HR>
1795 JAVA_VERSION_TRIMMED</H3>
1796 <PRE>
1798 <DL>
1801 <p>The field will return <code>null</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is <code>null</code>.</p>
1802 <P>
1803 <DL>
1806 </DL>
1807 </DL>
1808 <HR>
1811 JAVA_VERSION_FLOAT</H3>
1812 <PRE>
1814 <DL>
1818 <ul>
1821 </ul>
1823 <p>The field will return zero if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is <code>null</code>.</p>
1824 <P>
1825 <DL>
1828 </DL>
1829 </DL>
1830 <HR>
1833 JAVA_VERSION_INT</H3>
1834 <PRE>
1836 <DL>
1840 <ul>
1843 </ul>
1845 <p>The field will return zero if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is <code>null</code>.</p>
1846 <P>
1847 <DL>
1850 </DL>
1851 </DL>
1852 <HR>
1855 IS_JAVA_1_1</H3>
1856 <PRE>
1858 <DL>
1861 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1863 <P>
1864 <DL>
1865 </DL>
1866 </DL>
1867 <HR>
1870 IS_JAVA_1_2</H3>
1871 <PRE>
1873 <DL>
1876 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1878 <P>
1879 <DL>
1880 </DL>
1881 </DL>
1882 <HR>
1885 IS_JAVA_1_3</H3>
1886 <PRE>
1888 <DL>
1891 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1893 <P>
1894 <DL>
1895 </DL>
1896 </DL>
1897 <HR>
1900 IS_JAVA_1_4</H3>
1901 <PRE>
1903 <DL>
1906 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1908 <P>
1909 <DL>
1910 </DL>
1911 </DL>
1912 <HR>
1915 IS_JAVA_1_5</H3>
1916 <PRE>
1918 <DL>
1921 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1923 <P>
1924 <DL>
1925 </DL>
1926 </DL>
1927 <HR>
1930 IS_JAVA_1_6</H3>
1931 <PRE>
1933 <DL>
1936 <p>The field will return <code>false</code> if <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION"><CODE>JAVA_VERSION</CODE></A> is
1938 <P>
1939 <DL>
1940 </DL>
1941 </DL>
1942 <HR>
1945 IS_OS_AIX</H3>
1946 <PRE>
1948 <DL>
1953 <P>
1954 <DL>
1957 </DL>
1958 </DL>
1959 <HR>
1962 IS_OS_HP_UX</H3>
1963 <PRE>
1965 <DL>
1970 <P>
1971 <DL>
1974 </DL>
1975 </DL>
1976 <HR>
1979 IS_OS_IRIX</H3>
1980 <PRE>
1982 <DL>
1987 <P>
1988 <DL>
1991 </DL>
1992 </DL>
1993 <HR>
1996 IS_OS_LINUX</H3>
1997 <PRE>
1999 <DL>
2004 <P>
2005 <DL>
2008 </DL>
2009 </DL>
2010 <HR>
2013 IS_OS_MAC</H3>
2014 <PRE>
2016 <DL>
2021 <P>
2022 <DL>
2025 </DL>
2026 </DL>
2027 <HR>
2030 IS_OS_MAC_OSX</H3>
2031 <PRE>
2033 <DL>
2038 <P>
2039 <DL>
2042 </DL>
2043 </DL>
2044 <HR>
2047 IS_OS_OS2</H3>
2048 <PRE>
2050 <DL>
2055 <P>
2056 <DL>
2059 </DL>
2060 </DL>
2061 <HR>
2064 IS_OS_SOLARIS</H3>
2065 <PRE>
2067 <DL>
2072 <P>
2073 <DL>
2076 </DL>
2077 </DL>
2078 <HR>
2081 IS_OS_SUN_OS</H3>
2082 <PRE>
2084 <DL>
2089 <P>
2090 <DL>
2093 </DL>
2094 </DL>
2095 <HR>
2098 IS_OS_UNIX</H3>
2099 <PRE>
2101 <DL>
2103 as in any of AIX, HP-UX, Irix, Linux, MacOSX, Solaris or SUN OS.</p>
2107 <P>
2108 <DL>
2111 </DL>
2112 </DL>
2113 <HR>
2116 IS_OS_WINDOWS</H3>
2117 <PRE>
2119 <DL>
2124 <P>
2125 <DL>
2128 </DL>
2129 </DL>
2130 <HR>
2133 IS_OS_WINDOWS_2000</H3>
2134 <PRE>
2136 <DL>
2141 <P>
2142 <DL>
2145 </DL>
2146 </DL>
2147 <HR>
2150 IS_OS_WINDOWS_95</H3>
2151 <PRE>
2153 <DL>
2158 <P>
2159 <DL>
2162 </DL>
2163 </DL>
2164 <HR>
2167 IS_OS_WINDOWS_98</H3>
2168 <PRE>
2170 <DL>
2175 <P>
2176 <DL>
2179 </DL>
2180 </DL>
2181 <HR>
2184 IS_OS_WINDOWS_ME</H3>
2185 <PRE>
2187 <DL>
2192 <P>
2193 <DL>
2196 </DL>
2197 </DL>
2198 <HR>
2201 IS_OS_WINDOWS_NT</H3>
2202 <PRE>
2204 <DL>
2209 <P>
2210 <DL>
2213 </DL>
2214 </DL>
2215 <HR>
2218 IS_OS_WINDOWS_XP</H3>
2219 <PRE>
2221 <DL>
2226 <P>
2227 <DL>
2230 </DL>
2231 </DL>
2232 <HR>
2235 IS_OS_WINDOWS_VISTA</H3>
2236 <PRE>
2238 <DL>
2243 <P>
2244 <DL>
2247 </DL>
2248 </DL>
2250 <!-- ========= CONSTRUCTOR DETAIL ======== -->
2257 </TR>
2258 </TABLE>
2261 SystemUtils</H3>
2262 <PRE>
2264 <DL>
2265 <DD><p>SystemUtils instances should NOT be constructed in standard
2266 programming. Instead, the class should be used as
2269 <p>This constructor is public to permit tools that require a JavaBean
2270 instance to operate.</p>
2271 <P>
2272 </DL>
2274 <!-- ============ METHOD DETAIL ========== -->
2281 </TR>
2282 </TABLE>
2285 getJavaVersion</H3>
2286 <PRE>
2288 <DL>
2289 <DD><B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_VERSION_FLOAT"><CODE>JAVA_VERSION_FLOAT</CODE></A> instead.
2291 <P>
2295 <ul>
2298 </ul>
2299 <P>
2300 <DD><DL>
2303 </DD>
2304 </DL>
2305 <HR>
2308 isJavaVersionAtLeast</H3>
2309 <PRE>
2311 <DL>
2315 <ul>
2318 </ul>
2319 <P>
2320 <DD><DL>
2321 <DT><B>Parameters:</B><DD><CODE>requiredVersion</CODE> - the required version, for example 1.31f
2323 than the required version</DL>
2324 </DD>
2325 </DL>
2326 <HR>
2329 isJavaVersionAtLeast</H3>
2330 <PRE>
2332 <DL>
2336 <ul>
2339 </ul>
2340 <P>
2341 <DD><DL>
2346 </DL>
2347 </DD>
2348 </DL>
2349 <HR>
2352 isJavaAwtHeadless</H3>
2353 <PRE>
2355 <DL>
2356 <DD>Returns whether the <A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_HEADLESS"><CODE>JAVA_AWT_HEADLESS</CODE></A> value is <code>true</code>.
2357 <P>
2358 <DD><DL>
2360 <DT><B>Returns:</B><DD><code>true</code> if <code>JAVA_AWT_HEADLESS</code> is <code>"true"</code>,
2363 <DT><B>See Also:</B><DD><A HREF="../../../../org/apache/commons/lang/SystemUtils.html#JAVA_AWT_HEADLESS"><CODE>JAVA_AWT_HEADLESS</CODE></A></DL>
2364 </DD>
2365 </DL>
2366 <HR>
2369 getJavaHome</H3>
2370 <PRE>
2372 <DL>
2374 <P>
2375 <DD><DL>
2384 </DD>
2385 </DL>
2386 <HR>
2389 getJavaIoTmpDir</H3>
2390 <PRE>
2392 <DL>
2394 <P>
2395 <DD><DL>
2404 </DD>
2405 </DL>
2406 <HR>
2409 getUserDir</H3>
2410 <PRE>
2412 <DL>
2414 <P>
2415 <DD><DL>
2424 </DD>
2425 </DL>
2426 <HR>
2429 getUserHome</H3>
2430 <PRE>
2432 <DL>
2434 <P>
2435 <DD><DL>
2444 </DD>
2445 </DL>
2446 <!-- ========= END OF CLASS DATA ========= -->
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2454 <TR>
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2461 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
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2468 </TABLE>
2469 </TD>
2471 </EM>
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2475 <TR>
2477 <A HREF="../../../../org/apache/commons/lang/StringUtils.html" title="class in org.apache.commons.lang"><B>PREV CLASS</B></A>
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2497 SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
2499 DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD>
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