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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Fri Aug 23 13:18:15 EDT 2002 --><TITLE>: Class ComparableAssociation</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><a href=../copyright.html target=_top>© 1998-2002 McGraw-Hill</a></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../structure/Clock.html"><B>PREV CLASS</B></A> <A HREF="../structure/ComparableEdge.html"><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="ComparableAssociation.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#fields_inherited_from_class_structure.Association">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: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">structure</FONT><BR>Class ComparableAssociation</H2><PRE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../structure/Association.html">structure.Association</A> | +--<B>structure.ComparableAssociation</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Map.Entry.html">Map.Entry</A></DD></DL><HR><DL><DT>public class <B>ComparableAssociation</B><DT>extends <A HREF="../structure/Association.html">Association</A><DT>implements <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A></DL><P>A class implementing a comparable key-value pair. This class associates an immutable key with a mutable value. Useful for many other structures. Example usage: <P> To print out a list of professors sorted by the number of classes a particular student took from each, we could use the following: <pre> public static void main(String[] argv){ //initialize a new fib heap FibHeap classesTaken = new FibHeap(); //add professors and classes taken to a heap classesTaken.add(new <A HREF="../structure/ComparableAssociation.html#ComparableAssociation(java.lang.Comparable, java.lang.Object)"><CODE>ComparableAssociation(new Integer(5), "Andrea")</CODE></A>); classesTaken.add(new ComparableAssociation(new Integer(1), "Barbara")); classesTaken.add(new ComparableAssociation(new Integer(3), "Bill")); classesTaken.add(new ComparableAssociation(new Integer(2), "Duane")); classesTaken.add(new ComparableAssociation(new Integer(1), "Tom")); //print out classes taken while(!classesTaken.isEmpty()){ ComparableAssociation p = (ComparableAssociation)classesTaken.remove(); System.out.println(p.<A HREF="../structure/Association.html#getValue()"><CODE>getValue()</CODE></A> + " is " + p.<A HREF="../structure/Association.html#getKey()"><CODE>getKey()</CODE></A> + " years old."); } } </pre><P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_structure.Association"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class structure.<A HREF="../structure/Association.html">Association</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../structure/Association.html#theKey">theKey</A>, <A HREF="../structure/Association.html#theValue">theValue</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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="../structure/ComparableAssociation.html#ComparableAssociation(java.lang.Comparable)">ComparableAssociation</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> key)</CODE><BR> Construct an association that can be ordered, from only a key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../structure/ComparableAssociation.html#ComparableAssociation(java.lang.Comparable, java.lang.Object)">ComparableAssociation</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> key, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> value)</CODE><BR> Construct a key-value association that can be ordered.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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> int</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/ComparableAssociation.html#compareTo(java.lang.Object)">compareTo</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> other)</CODE>⌨️ 快捷键说明
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