📄 splaytree.html
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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 13:18:20 EDT 2002 --><TITLE>: Class SplayTree</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/SkewHeap.html"><B>PREV CLASS</B></A> <A HREF="../structure/SplayTreeIterator.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="SplayTree.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.BinarySearchTree">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 SplayTree</H2><PRE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../structure/AbstractStructure.html">structure.AbstractStructure</A> | +--<A HREF="../structure/BinarySearchTree.html">structure.BinarySearchTree</A> | +--<B>structure.SplayTree</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../structure/OrderedStructure.html">OrderedStructure</A>, <A HREF="../structure/Structure.html">Structure</A></DD></DL><HR><DL><DT>public class <B>SplayTree</B><DT>extends <A HREF="../structure/BinarySearchTree.html">BinarySearchTree</A><DT>implements <A HREF="../structure/OrderedStructure.html">OrderedStructure</A></DL><P>An implementation of binary search trees, based on a splay operation by Tarjan et al. An extension of the binary search tree class that decreases the likelyhood of a binary tree becomming degenerate. Example usage: <P> To create a splay tree containing the months of the year and to print out this tree as it grows we could use the following. <P> <pre> public static void main(String[] argv){ SplayTree test = new <A HREF="../structure/SplayTree.html#SplayTree()"><CODE>SplayTree()</CODE></A>; //declare an array of months String[] months = new String[]{"March", "May", "November", "August", "April", "January", "December", "July", "February", "June", "October", "September"}; //add the months to the tree and print out the tree as it grows for(int i=0; i < months.length; i++){ test.<A HREF="../structure/SplayTree.html#add(java.lang.Object)"><CODE>add(months[i])</CODE></A>; System.out.println("Adding: " + months[i] + "\n" +test.<A HREF="../structure/BinarySearchTree.html#treeString()"><CODE>BinarySearchTree.treeString()</CODE></A>); } } </pre><P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_structure.BinarySearchTree"><!-- --></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/BinarySearchTree.html">BinarySearchTree</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../structure/BinarySearchTree.html#count">count</A>, <A HREF="../structure/BinarySearchTree.html#ordering">ordering</A>, <A HREF="../structure/BinarySearchTree.html#root">root</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/SplayTree.html#SplayTree()">SplayTree</A></B>()</CODE><BR> Construct an empty search tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../structure/SplayTree.html#SplayTree(java.util.Comparator)">SplayTree</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Comparator.html">Comparator</A> alternateOrder)</CODE><BR> Construct an empty search tree.</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> void</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#add(java.lang.Object)">add</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> val)</CODE><BR> Add a value to the splay tree.</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="../structure/SplayTree.html#contains(java.lang.Object)">contains</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> val)</CODE><BR> Determine if a particular value is within the search tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#get(java.lang.Object)">get</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> val)</CODE><BR> Fetch a reference to the comparable value in the tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html">Iterator</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#iterator()">iterator</A></B>()</CODE><BR> Construct an inorder traversal of the elements in the splay tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#remove(java.lang.Object)">remove</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> val)</CODE><BR> Remove a comparable value from the tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#splay(structure.BinaryTree)">splay</A></B>(<A HREF="../structure/BinaryTree.html">BinaryTree</A> splayedNode)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/SplayTree.html#toString()">toString</A></B>()</CODE><BR> Construct a string that represents the splay tree.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_structure.BinarySearchTree"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class structure.<A HREF="../structure/BinarySearchTree.html">BinarySearchTree</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../structure/BinarySearchTree.html#clear()">clear</A>, <A HREF="../structure/BinarySearchTree.html#hashCode()">hashCode</A>, <A HREF="../structure/BinarySearchTree.html#isEmpty()">isEmpty</A>, <A HREF="../structure/BinarySearchTree.html#locate(structure.BinaryTree, java.lang.Object)">locate</A>, <A HREF="../structure/BinarySearchTree.html#predecessor(structure.BinaryTree)">predecessor</A>, <A HREF="../structure/BinarySearchTree.html#removeTop(structure.BinaryTree)">removeTop</A>, <A HREF="../structure/BinarySearchTree.html#size()">size</A>, <A HREF="../structure/BinarySearchTree.html#successor(structure.BinaryTree)">successor</A>, <A HREF="../structure/BinarySearchTree.html#treeString()">treeString</A></CODE></TD></TR>⌨️ 快捷键说明
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