defaultkeyedvalues.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

</DD>
<DD><DL>

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

<A NAME="getValue(int)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Number <B>getValue</B>(int&nbsp;item)</PRE>
<DL>
<DD>Returns a value.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Values.html#getValue(int)">getValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Values.html" title="interface in org.jfree.data">Values</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - the item of interest (zero-based index).
<DT><B>Returns:</B><DD>the value.</DL>
</DD>
</DL>
<HR>

<A NAME="getKey(int)"><!-- --></A><H3>
getKey</H3>
<PRE>
public java.lang.Comparable <B>getKey</B>(int&nbsp;index)</PRE>
<DL>
<DD>Returns a key.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/KeyedValues.html#getKey(int)">getKey</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data">KeyedValues</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the item index (zero-based).
<DT><B>Returns:</B><DD>the row key.</DL>
</DD>
</DL>
<HR>

<A NAME="getIndex(java.lang.Comparable)"><!-- --></A><H3>
getIndex</H3>
<PRE>
public int <B>getIndex</B>(java.lang.Comparable&nbsp;key)</PRE>
<DL>
<DD>Returns the index for a given key or -1 if the key is not found.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/KeyedValues.html#getIndex(java.lang.Comparable)">getIndex</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data">KeyedValues</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.
<DT><B>Returns:</B><DD>the index.</DL>
</DD>
</DL>
<HR>

<A NAME="getKeys()"><!-- --></A><H3>
getKeys</H3>
<PRE>
public java.util.List <B>getKeys</B>()</PRE>
<DL>
<DD>Returns the keys for the values in the collection.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/KeyedValues.html#getKeys()">getKeys</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data">KeyedValues</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The keys (never <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="getValue(java.lang.Comparable)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Number <B>getValue</B>(java.lang.Comparable&nbsp;key)</PRE>
<DL>
<DD>Returns the value (possibly <code>null</code>) for a given key.  If the key is not 
 recognised, the method returns <code>null</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/KeyedValues.html#getValue(java.lang.Comparable)">getValue</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data">KeyedValues</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.
<DT><B>Returns:</B><DD>the value.</DL>
</DD>
</DL>
<HR>

<A NAME="addValue(java.lang.Comparable, java.lang.Number)"><!-- --></A><H3>
addValue</H3>
<PRE>
public void <B>addValue</B>(java.lang.Comparable&nbsp;key,
                     java.lang.Number&nbsp;value)</PRE>
<DL>
<DD>Adds a new value to the collection, or updates an existing value.
 <P>
 This is the same as the setValue(...) method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.<DD><CODE>value</CODE> - the value.</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>Updates an existing value, or adds a new value to the collection.
 <P>
 This is the same as the addValue(...) method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key.<DD><CODE>value</CODE> - the value.</DL>
</DD>
</DL>
<HR>

<A NAME="removeValue(int)"><!-- --></A><H3>
removeValue</H3>
<PRE>
public void <B>removeValue</B>(int&nbsp;index)</PRE>
<DL>
<DD>Removes a value from the collection.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index of the item to remove.</DL>
</DD>
</DL>
<HR>

<A NAME="removeValue(java.lang.Comparable)"><!-- --></A><H3>
removeValue</H3>
<PRE>
public void <B>removeValue</B>(java.lang.Comparable&nbsp;key)</PRE>
<DL>
<DD>Removes a value from the collection.  If there is no value with the specified key,
 then this method does nothing.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key of the item to remove.</DL>
</DD>
</DL>
<HR>

<A NAME="sortByKeys(org.jfree.util.SortOrder)"><!-- --></A><H3>
sortByKeys</H3>
<PRE>
public void <B>sortByKeys</B>(org.jfree.util.SortOrder&nbsp;order)</PRE>
<DL>
<DD>Sorts the items in the list by key.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>order</CODE> - the sort order (ascending or descending).</DL>
</DD>
</DL>
<HR>

<A NAME="sortByValues(org.jfree.util.SortOrder)"><!-- --></A><H3>
sortByValues</H3>
<PRE>
public void <B>sortByValues</B>(org.jfree.util.SortOrder&nbsp;order)</PRE>
<DL>
<DD>Sorts the items in the list by value.  If the list contains <code>null</code> values, they
 will sort to the end of the list, irrespective of the sort order.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>order</CODE> - the sort order (ascending or descending).</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;o)</PRE>
<DL>
<DD>Tests if this object is equal to another.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>o</CODE> - the other 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>Returns a clone.
<P>
<DD><DL>
</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 
         might.</DL>
</DD>
</DL>
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