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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 1.4.2_03) on Mon Jun 07 16:42:29 BST 2004 --><TITLE>DateTickUnit (JFreeChart Class Library (version 0.9.20))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.axis.DateTickUnit class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DateTickUnit (JFreeChart Class Library (version 0.9.20))";}</SCRIPT></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=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" 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ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/jfree/chart/axis/DateTickMarkPosition.html" title="class in org.jfree.chart.axis"><B>PREV CLASS</B></A> <A HREF="../../../../org/jfree/chart/axis/ExtendedCategoryAxis.html" title="class in org.jfree.chart.axis"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="DateTickUnit.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.chart.axis</FONT><BR>Class DateTickUnit</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/jfree/chart/axis/TickUnit.html" title="class in org.jfree.chart.axis">org.jfree.chart.axis.TickUnit</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>org.jfree.chart.axis.DateTickUnit</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Comparable, java.io.Serializable</DD></DL><HR><DL><DT>public class <B>DateTickUnit</B><DT>extends <A HREF="../../../../org/jfree/chart/axis/TickUnit.html" title="class in org.jfree.chart.axis">TickUnit</A><DT>implements java.io.Serializable</DL><P>A tick unit for use by subclasses of <A HREF="../../../../org/jfree/chart/axis/DateAxis.html" title="class in org.jfree.chart.axis"><CODE>DateAxis</CODE></A>. <p> Instances of this class are immutable.<P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.jfree.chart.axis.DateTickUnit">Serialized Form</A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#DAY">DAY</A></B></CODE><BR> A constant for days.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#HOUR">HOUR</A></B></CODE><BR> A constant for hours.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#MILLISECOND">MILLISECOND</A></B></CODE><BR> A constant for milliseconds.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#MINUTE">MINUTE</A></B></CODE><BR> A constant for minutes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#MONTH">MONTH</A></B></CODE><BR> A constant for months.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#SECOND">SECOND</A></B></CODE><BR> A constant for seconds.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#YEAR">YEAR</A></B></CODE><BR> A constant for years.</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"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#DateTickUnit(int, int)">DateTickUnit</A></B>(int unit, int count)</CODE><BR> Creates a new date tick unit.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#DateTickUnit(int, int, java.text.DateFormat)">DateTickUnit</A></B>(int unit, int count, java.text.DateFormat formatter)</CODE><BR> Creates a new date tick unit.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#DateTickUnit(int, int, int, int, java.text.DateFormat)">DateTickUnit</A></B>(int unit, int count, int rollUnit, int rollCount, java.text.DateFormat formatter)</CODE><BR> Creates a new unit.</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"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></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/chart/axis/DateTickUnit.html#addToDate(java.util.Date)">addToDate</A></B>(java.util.Date base)</CODE><BR> Calculates a new date by adding this unit to the base date.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#dateToString(java.util.Date)">dateToString</A></B>(java.util.Date date)</CODE><BR> Formats a date using the tick unit's formatter.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object obj)</CODE><BR> Tests this unit for equality with another object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#getCalendarField()">getCalendarField</A></B>()</CODE><BR> Returns a field code that can be used with the <code>Calendar</code> class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#getCount()">getCount</A></B>()</CODE><BR> Returns the unit count.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#getRollCount()">getRollCount</A></B>()</CODE><BR> Returns the roll count.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#getRollUnit()">getRollUnit</A></B>()</CODE><BR> Returns the roll unit.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#getUnit()">getUnit</A></B>()</CODE><BR> Returns the date unit.</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/chart/axis/DateTickUnit.html#rollDate(java.util.Date)">rollDate</A></B>(java.util.Date base)</CODE><BR> Rolls the date forward by the amount specified by the roll unit and count.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/DateTickUnit.html#valueToString(double)">valueToString</A></B>(double milliseconds)</CODE><BR> Formats a value.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_org.jfree.chart.axis.TickUnit"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class org.jfree.chart.axis.<A HREF="../../../../org/jfree/chart/axis/TickUnit.html" title="class in org.jfree.chart.axis">TickUnit</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/jfree/chart/axis/TickUnit.html#compareTo(java.lang.Object)">compareTo</A>, <A HREF="../../../../org/jfree/chart/axis/TickUnit.html#getSize()">getSize</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><A NAME="field_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Field Detail</B></FONT></TD></TR></TABLE><A NAME="YEAR"><!-- --></A><H3>YEAR</H3><PRE>public static final int <B>YEAR</B></PRE><DL><DD>A constant for years.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.YEAR">Constant Field Values</A></DL></DL><HR><A NAME="MONTH"><!-- --></A><H3>MONTH</H3><PRE>public static final int <B>MONTH</B></PRE><DL><DD>A constant for months.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.MONTH">Constant Field Values</A></DL></DL><HR>⌨️ 快捷键说明
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