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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 15:15:43 BST 2006 --><TITLE>DefaultXYDataset (JFreeChart Class Library (version 1.0.2))</TITLE><META NAME="keywords" CONTENT="org.jfree.data.xy.DefaultXYDataset class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DefaultXYDataset (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" 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HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <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.xy</FONT><BR>Class DefaultXYDataset</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/jfree/data/general/AbstractDataset.html" title="class in org.jfree.data.general">org.jfree.data.general.AbstractDataset</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/jfree/data/general/AbstractSeriesDataset.html" title="class in org.jfree.data.general">org.jfree.data.general.AbstractSeriesDataset</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/jfree/data/xy/AbstractXYDataset.html" title="class in org.jfree.data.xy">org.jfree.data.xy.AbstractXYDataset</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.jfree.data.xy.DefaultXYDataset</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.ObjectInputValidation, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, <A HREF="../../../../org/jfree/data/general/Dataset.html" title="interface in org.jfree.data.general">Dataset</A>, <A HREF="../../../../org/jfree/data/general/SeriesChangeListener.html" title="interface in org.jfree.data.general">SeriesChangeListener</A>, <A HREF="../../../../org/jfree/data/general/SeriesDataset.html" title="interface in org.jfree.data.general">SeriesDataset</A>, <A HREF="../../../../org/jfree/data/xy/XYDataset.html" title="interface in org.jfree.data.xy">XYDataset</A></DD></DL><HR><DL><DT><PRE>public class <A HREF="../../../../src-html/org/jfree/data/xy/DefaultXYDataset.html#line.58"><B>DefaultXYDataset</B></A><DT>extends <A HREF="../../../../org/jfree/data/xy/AbstractXYDataset.html" title="class in org.jfree.data.xy">AbstractXYDataset</A><DT>implements <A HREF="../../../../org/jfree/data/xy/XYDataset.html" title="interface in org.jfree.data.xy">XYDataset</A></DL></PRE><P>A default implementation of the <A HREF="../../../../org/jfree/data/xy/XYDataset.html" title="interface in org.jfree.data.xy"><CODE>XYDataset</CODE></A> interface that stores data values in arrays of double primitives.<P><P><DL><DT><B>Since:</B></DT> <DD>1.0.2</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.jfree.data.xy.DefaultXYDataset">Serialized Form</A></DL><HR><P><!-- ======== 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/xy/DefaultXYDataset.html#DefaultXYDataset()">DefaultXYDataset</A></B>()</CODE><BR> Creates a new <code>DefaultXYDataset</code> instance, initially containing no data.</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> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#addSeries(java.lang.Comparable, double[][])">addSeries</A></B>(java.lang.Comparable seriesKey, double[][] data)</CODE><BR> Adds a series or if a series with the same key already exists replaces the data for that series, then sends a <A HREF="../../../../org/jfree/data/general/DatasetChangeEvent.html" title="class in org.jfree.data.general"><CODE>DatasetChangeEvent</CODE></A> to all registered listeners.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#clone()">clone</A></B>()</CODE><BR> Creates an independent copy of this dataset.</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/data/xy/DefaultXYDataset.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object obj)</CODE><BR> Tests this <code>DefaultXYDataset</code> instance for equality with an arbitrary object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../org/jfree/data/DomainOrder.html" title="class in org.jfree.data">DomainOrder</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#getDomainOrder()">getDomainOrder</A></B>()</CODE><BR> Returns the order of the domain (x-) values in the dataset.</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/data/xy/DefaultXYDataset.html#getItemCount(int)">getItemCount</A></B>(int series)</CODE><BR> Returns the number of items in the specified series.</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/data/xy/DefaultXYDataset.html#getSeriesCount()">getSeriesCount</A></B>()</CODE><BR> Returns the number of series in the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Comparable</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#getSeriesKey(int)">getSeriesKey</A></B>(int series)</CODE><BR> Returns the key for a series.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Number</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#getX(int, int)">getX</A></B>(int series, int item)</CODE><BR> Returns the x-value for an item within a series.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/xy/DefaultXYDataset.html#getXValue(int, int)">getXValue</A></B>(int series, int item)</CODE><BR> Returns the x-value for an item within a series.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">⌨️ 快捷键说明
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