defaultkeyedvaluedataset.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

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<A NAME="DefaultKeyedValueDataset()"><!-- --></A><H3>
DefaultKeyedValueDataset</H3>
<PRE>
public <B>DefaultKeyedValueDataset</B>()</PRE>
<DL>
<DD>Constructs a new dataset, initially empty.
<P>
</DL>
<HR>

<A NAME="DefaultKeyedValueDataset(java.lang.Comparable, java.lang.Number)"><!-- --></A><H3>
DefaultKeyedValueDataset</H3>
<PRE>
public <B>DefaultKeyedValueDataset</B>(java.lang.Comparable&nbsp;key,
                                java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Creates a new dataset with the specified initial value.
<P>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.<DD><CODE>value</CODE> - the value (<code>null</code> permitted).</DL>
<HR>

<A NAME="DefaultKeyedValueDataset(org.jfree.data.KeyedValue)"><!-- --></A><H3>
DefaultKeyedValueDataset</H3>
<PRE>
public <B>DefaultKeyedValueDataset</B>(<A HREF="../../../org/jfree/data/KeyedValue.html" title="interface in org.jfree.data">KeyedValue</A>&nbsp;data)</PRE>
<DL>
<DD>Creates a new dataset that uses the data from a <A HREF="../../../org/jfree/data/KeyedValue.html" title="interface in org.jfree.data"><CODE>KeyedValue</CODE></A> instance.
<P>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data (<code>null</code> permitted).</DL>

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<A NAME="getKey()"><!-- --></A><H3>
getKey</H3>
<PRE>
public java.lang.Comparable <B>getKey</B>()</PRE>
<DL>
<DD>Returns the key associated with the value, or <code>null</code> if the dataset has no 
 data item.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/KeyedValue.html#getKey()">getKey</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/KeyedValue.html" title="interface in org.jfree.data">KeyedValue</A></CODE></DL>
</DD>
<DD><DL>

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

<A NAME="getValue()"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Number <B>getValue</B>()</PRE>
<DL>
<DD>Returns the value.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Value.html#getValue()">getValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Value.html" title="interface in org.jfree.data">Value</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the value (possibly <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="updateValue(java.lang.Number)"><!-- --></A><H3>
updateValue</H3>
<PRE>
public void <B>updateValue</B>(java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Updates the value.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the new value (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="setValue(java.lang.Comparable, java.lang.Number)"><!-- --></A><H3>
setValue</H3>
<PRE>
public void <B>setValue</B>(java.lang.Comparable&nbsp;key,
                     java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Sets the value for the dataset and sends a <A HREF="../../../org/jfree/data/DatasetChangeEvent.html" title="class in org.jfree.data"><CODE>DatasetChangeEvent</CODE></A> to all registered 
 listeners.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.<DD><CODE>value</CODE> - the value (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;obj)</PRE>
<DL>
<DD>Tests this dataset for equality with an arbitrary object.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object.
<DT><B>Returns:</B><DD>A boolean.</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns a hash code.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()
                       throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Creates a clone of the dataset.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/jfree/data/AbstractDataset.html#clone()">clone</A></CODE> in class <CODE><A HREF="../../../org/jfree/data/AbstractDataset.html" title="class in org.jfree.data">AbstractDataset</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>A clone.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - This class will not throw this exception, but subclasses 
         (if any) might.</DL>
</DD>
</DL>
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