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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_07) on Fri Aug 25 15:15:41 BST 2006 --><TITLE>RegularTimePeriod (JFreeChart Class Library (version 1.0.2))</TITLE><META NAME="keywords" CONTENT="org.jfree.data.time.RegularTimePeriod class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="RegularTimePeriod (JFreeChart Class Library (version 1.0.2))";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/RegularTimePeriod.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/jfree/data/time/Quarter.html" title="class in org.jfree.data.time"><B>PREV CLASS</B></A> <A HREF="../../../../org/jfree/data/time/Second.html" title="class in org.jfree.data.time"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?org/jfree/data/time/RegularTimePeriod.html" target="_top"><B>FRAMES</B></A> <A HREF="RegularTimePeriod.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.data.time</FONT><BR>Class RegularTimePeriod</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.jfree.data.time.RegularTimePeriod</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Comparable, <A HREF="../../../../org/jfree/data/time/TimePeriod.html" title="interface in org.jfree.data.time">TimePeriod</A>, org.jfree.date.MonthConstants</DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/jfree/data/time/Day.html" title="class in org.jfree.data.time">Day</A>, <A HREF="../../../../org/jfree/data/time/FixedMillisecond.html" title="class in org.jfree.data.time">FixedMillisecond</A>, <A HREF="../../../../org/jfree/data/time/Hour.html" title="class in org.jfree.data.time">Hour</A>, <A HREF="../../../../org/jfree/data/time/Millisecond.html" title="class in org.jfree.data.time">Millisecond</A>, <A HREF="../../../../org/jfree/data/time/Minute.html" title="class in org.jfree.data.time">Minute</A>, <A HREF="../../../../org/jfree/data/time/Month.html" title="class in org.jfree.data.time">Month</A>, <A HREF="../../../../org/jfree/data/time/Quarter.html" title="class in org.jfree.data.time">Quarter</A>, <A HREF="../../../../org/jfree/data/time/Second.html" title="class in org.jfree.data.time">Second</A>, <A HREF="../../../../org/jfree/data/time/Week.html" title="class in org.jfree.data.time">Week</A>, <A HREF="../../../../org/jfree/data/time/Year.html" title="class in org.jfree.data.time">Year</A></DD></DL><HR><DL><DT><PRE>public abstract class <A HREF="../../../../src-html/org/jfree/data/time/RegularTimePeriod.html#line.69"><B>RegularTimePeriod</B></A><DT>extends java.lang.Object<DT>implements <A HREF="../../../../org/jfree/data/time/TimePeriod.html" title="interface in org.jfree.data.time">TimePeriod</A>, java.lang.Comparable, org.jfree.date.MonthConstants</DL></PRE><P>An abstract class representing a unit of time. Convenient methods are provided for calculating the next and previous time periods. Conversion methods are defined that return the first and last milliseconds of the time period. The results from these methods are timezone dependent. <P> This class is immutable, and all subclasses should be immutable also.<P><P><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.util.TimeZone</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#DEFAULT_TIME_ZONE">DEFAULT_TIME_ZONE</A></B></CODE><BR> The default time zone.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.util.Calendar</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#WORKING_CALENDAR">WORKING_CALENDAR</A></B></CODE><BR> A working calendar (recycle to avoid unnecessary object creation).</TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.jfree.date.MonthConstants"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from interface org.jfree.date.MonthConstants</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>APRIL, AUGUST, DECEMBER, FEBRUARY, JANUARY, JULY, JUNE, MARCH, MAY, NOVEMBER, OCTOBER, SEPTEMBER</CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#RegularTimePeriod()">RegularTimePeriod</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time">RegularTimePeriod</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#createInstance(java.lang.Class, java.util.Date, java.util.TimeZone)">createInstance</A></B>(java.lang.Class c, java.util.Date millisecond, java.util.TimeZone zone)</CODE><BR> Creates a time period that includes the specified millisecond, assuming the given time zone.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.Class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#downsize(java.lang.Class)">downsize</A></B>(java.lang.Class c)</CODE><BR> Returns a subclass of <A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html" title="class in org.jfree.data.time"><CODE>RegularTimePeriod</CODE></A> that is smaller than the specified class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Date</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getEnd()">getEnd</A></B>()</CODE><BR> Returns the date/time that marks the end of the time period.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getFirstMillisecond()">getFirstMillisecond</A></B>()</CODE><BR> Returns the first millisecond of the time period, evaluated in the default time zone.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getFirstMillisecond(java.util.Calendar)">getFirstMillisecond</A></B>(java.util.Calendar calendar)</CODE><BR> Returns the first millisecond of the time period, evaluated using the supplied calendar (which incorporates a timezone).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getFirstMillisecond(java.util.TimeZone)">getFirstMillisecond</A></B>(java.util.TimeZone zone)</CODE><BR> Returns the first millisecond of the time period, evaluated within a specific time zone.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getLastMillisecond()">getLastMillisecond</A></B>()</CODE><BR> Returns the last millisecond of the time period, evaluated in the default time zone.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getLastMillisecond(java.util.Calendar)">getLastMillisecond</A></B>(java.util.Calendar calendar)</CODE><BR> Returns the last millisecond of the time period, evaluated using the supplied calendar (which incorporates a timezone).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/time/RegularTimePeriod.html#getLastMillisecond(java.util.TimeZone)">getLastMillisecond</A></B>(java.util.TimeZone zone)</CODE><BR> Returns the last millisecond of the time period, evaluated within a specific time zone.</TD></TR>⌨️ 快捷键说明
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