xyseries.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the y-value at the specified index.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#hashCode()">hashCode</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a hash code.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#indexOf(java.lang.Number)">indexOf</A></B>(java.lang.Number&nbsp;x)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the index of the item with the specified x-value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#remove(int)">remove</A></B>(int&nbsp;index)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes the item at the specified index.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#remove(java.lang.Number)">remove</A></B>(java.lang.Number&nbsp;x)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes the item(s) with the specified x-value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#setMaximumItemCount(int)">setMaximumItemCount</A></B>(int&nbsp;maximum)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the maximum number of items that will be retained in the series.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/data/XYSeries.html#update(int, java.lang.Number)">update</A></B>(int&nbsp;index,
       java.lang.Number&nbsp;y)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Updates the value of an item in the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all
 registered listeners.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.jfree.data.Series"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class org.jfree.data.<A HREF="../../../org/jfree/data/Series.html" title="class in org.jfree.data">Series</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/jfree/data/Series.html#addChangeListener(org.jfree.data.SeriesChangeListener)">addChangeListener</A>, <A HREF="../../../org/jfree/data/Series.html#addPropertyChangeListener(java.beans.PropertyChangeListener)">addPropertyChangeListener</A>, <A HREF="../../../org/jfree/data/Series.html#firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)">firePropertyChange</A>, <A HREF="../../../org/jfree/data/Series.html#fireSeriesChanged()">fireSeriesChanged</A>, <A HREF="../../../org/jfree/data/Series.html#getDescription()">getDescription</A>, <A HREF="../../../org/jfree/data/Series.html#getName()">getName</A>, <A HREF="../../../org/jfree/data/Series.html#getNotify()">getNotify</A>, <A HREF="../../../org/jfree/data/Series.html#notifyListeners(org.jfree.data.SeriesChangeEvent)">notifyListeners</A>, <A HREF="../../../org/jfree/data/Series.html#removeChangeListener(org.jfree.data.SeriesChangeListener)">removeChangeListener</A>, <A HREF="../../../org/jfree/data/Series.html#removePropertyChangeListener(java.beans.PropertyChangeListener)">removePropertyChangeListener</A>, <A HREF="../../../org/jfree/data/Series.html#setDescription(java.lang.String)">setDescription</A>, <A HREF="../../../org/jfree/data/Series.html#setName(java.lang.String)">setName</A>, <A HREF="../../../org/jfree/data/Series.html#setNotify(boolean)">setNotify</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<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>finalize, getClass, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<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="data"><!-- --></A><H3>
data</H3>
<PRE>
protected java.util.List <B>data</B></PRE>
<DL>
<DD>Storage for the data items in the series.
<P>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="XYSeries(java.lang.String)"><!-- --></A><H3>
XYSeries</H3>
<PRE>
public <B>XYSeries</B>(java.lang.String&nbsp;name)</PRE>
<DL>
<DD>Creates a new empty series.  By default, items added to the series will be sorted into 
 ascending order by x-value, and duplicate x-values will be allowed (these defaults can be 
 modified with another constructor.
<P>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the series name (<code>null</code> not permitted).</DL>
<HR>

<A NAME="XYSeries(java.lang.String, boolean, boolean)"><!-- --></A><H3>
XYSeries</H3>
<PRE>
public <B>XYSeries</B>(java.lang.String&nbsp;name,
                boolean&nbsp;autoSort,
                boolean&nbsp;allowDuplicateXValues)</PRE>
<DL>
<DD>Constructs a new xy-series that contains no data.  You can specify whether or not
 duplicate x-values are allowed for the series.
<P>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the series name (<code>null</code> not permitted).<DD><CODE>autoSort</CODE> - a flag that controls whether or not the items in the series are sorted.<DD><CODE>allowDuplicateXValues</CODE> - a flag that controls whether duplicate x-values are allowed.</DL>
<HR>

<A NAME="XYSeries(java.lang.String, boolean)"><!-- --></A><H3>
XYSeries</H3>
<PRE>
public <B>XYSeries</B>(java.lang.String&nbsp;name,
                boolean&nbsp;allowDuplicateXValues)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Use a XYSeries(String, boolean, boolean) instead.</I>
<P>
<DD>Constructs a new xy-series that contains no data.  You can specify whether or not
 duplicate x-values are allowed for the series.
<P>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the series name.<DD><CODE>allowDuplicateXValues</CODE> - a flag that controls whether duplicate x-values are allowed.</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="getAutoSort()"><!-- --></A><H3>
getAutoSort</H3>
<PRE>
public boolean <B>getAutoSort</B>()</PRE>
<DL>
<DD>Returns the flag that controls whether the items in the series are automatically sorted.
 There is no setter for this flag, it must be defined in the series constructor.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a boolean.</DL>
</DD>
</DL>
<HR>

<A NAME="getAllowDuplicateXValues()"><!-- --></A><H3>
getAllowDuplicateXValues</H3>
<PRE>
public boolean <B>getAllowDuplicateXValues</B>()</PRE>
<DL>
<DD>Returns a flag that controls whether duplicate x-values are allowed.  This flag can only 
 be set in the constructor.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a boolean.</DL>
</DD>
</DL>
<HR>

<A NAME="getItemCount()"><!-- --></A><H3>
getItemCount</H3>
<PRE>
public int <B>getItemCount</B>()</PRE>
<DL>
<DD>Returns the number of items in the series.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the item count.</DL>
</DD>
</DL>
<HR>

<A NAME="getItems()"><!-- --></A><H3>
getItems</H3>
<PRE>
public java.util.List <B>getItems</B>()</PRE>
<DL>
<DD>Returns the list of data items for the series (the list contains <A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data"><CODE>XYDataItem</CODE></A> 
 objects and is unmodifiable).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the list of data items.</DL>
</DD>
</DL>
<HR>

<A NAME="getMaximumItemCount()"><!-- --></A><H3>
getMaximumItemCount</H3>
<PRE>
public int <B>getMaximumItemCount</B>()</PRE>
<DL>
<DD>Returns the maximum number of items that will be retained in the series.
 <P>
 The default value is <code>Integer.MAX_VALUE</code>).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the maximum item count.</DL>
</DD>
</DL>
<HR>

<A NAME="setMaximumItemCount(int)"><!-- --></A><H3>
setMaximumItemCount</H3>
<PRE>
public void <B>setMaximumItemCount</B>(int&nbsp;maximum)</PRE>
<DL>
<DD>Sets the maximum number of items that will be retained in the series.
 <P>
 If you add a new item to the series such that the number of items will exceed the
 maximum item count, then the FIRST element in the series is automatically removed,
 ensuring that the maximum item count is not exceeded.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>maximum</CODE> - the maximum.</DL>
</DD>
</DL>
<HR>

<A NAME="add(org.jfree.data.XYDataItem)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A>&nbsp;item)</PRE>
<DL>
<DD>Adds a data item to the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered 
 listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - the (x, y) item (<code>null</code> not permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="add(org.jfree.data.XYDataItem, boolean)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../org/jfree/data/XYDataItem.html" title="class in org.jfree.data">XYDataItem</A>&nbsp;item,
                boolean&nbsp;notify)</PRE>
<DL>
<DD>Adds a data item to the series and, if requested, sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all 
 registered listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - the (x, y) item (<code>null</code> not permitted).<DD><CODE>notify</CODE> - a flag that controls whether or not a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> is sent to 
                all registered listeners.</DL>
</DD>
</DL>
<HR>

<A NAME="add(double, double)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(double&nbsp;x,
                double&nbsp;y)</PRE>
<DL>
<DD>Adds a data item to the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered
 listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x value.<DD><CODE>y</CODE> - the y value.</DL>
</DD>
</DL>
<HR>

<A NAME="add(double, double, boolean)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(double&nbsp;x,
                double&nbsp;y,
                boolean&nbsp;notify)</PRE>
<DL>
<DD>Adds a data item to the series and, if requested, sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all
 registered listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x value.<DD><CODE>y</CODE> - the y value.<DD><CODE>notify</CODE> - a flag that controls whether or not a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> is sent to 
                all registered listeners.</DL>
</DD>
</DL>
<HR>

<A NAME="add(double, java.lang.Number)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(double&nbsp;x,
                java.lang.Number&nbsp;y)</PRE>
<DL>
<DD>Adds a data item to the series and sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to all registered
 listeners.
 <P>
 The unusual pairing of parameter types is to make it easier to add <code>null</code> 
 y-values.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x value.<DD><CODE>y</CODE> - the y value (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="add(double, java.lang.Number, boolean)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(double&nbsp;x,
                java.lang.Number&nbsp;y,
                boolean&nbsp;notify)</PRE>
<DL>
<DD>Adds a data item to the series and, if requested, sends a <A HREF="../../../org/jfree/data/SeriesChangeEvent.html" title="class in org.jfree.data"><CODE>SeriesChangeEvent</CODE></A> to 
 all registered listeners.