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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 13:18:19 EDT 2002 --><TITLE>: Class RedBlackTree</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/RedBlackSearchTree.html"><B>PREV CLASS</B></A> <A HREF="../structure/ReverseComparator.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="RedBlackTree.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#field_summary">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: <A HREF="#field_detail">FIELD</A> | <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 RedBlackTree</H2><PRE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">java.lang.Object</A> | +--<B>structure.RedBlackTree</B></PRE><HR><DL><DT>public class <B>RedBlackTree</B><DT>extends <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></DL><P>This class implements a single node of a red-black tree. It is a recursive structure. Relationships between nodes are doubly linked, with parent and child references. Many characteristics of trees may be detected with static methods.<P><DL><DT><B>See Also: </B><DD><CODE>structure.AVLTree</CODE>, <A HREF="../structure/BinaryTree.html"><CODE>BinaryTree</CODE></A>, <A HREF="../structure/BinarySearchTree.html"><CODE>BinarySearchTree</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#EMPTY">EMPTY</A></B></CODE><BR> the unique empty node; used as children on leaf trees and as empty search trees.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#isRed">isRed</A></B></CODE><BR> The color of this node - red or black (not red)</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#left">left</A></B></CODE><BR> The left child of this node, or EMPTY</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#parent">parent</A></B></CODE><BR> The parent of this node, or null</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#right">right</A></B></CODE><BR> The right child of this node, or EMPTY</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#value">value</A></B></CODE><BR> The value stored in this node</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 ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#RedBlackTree()">RedBlackTree</A></B>()</CODE><BR> A one-time constructor, for constructing empty trees.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> </CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#RedBlackTree(java.lang.Comparable)">RedBlackTree</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> v)</CODE><BR> Constructs a red-black tree with no children, value of the node is provided by the user</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> <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#add(java.lang.Comparable)">add</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> c)</CODE><BR> Add a value to the red black tree, performing neccisary rotations and adjustments.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#blackConsistency()">blackConsistency</A></B>()</CODE><BR> Returns true if black properties of tree are correct</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/RedBlackTree.html#blackFixup()">blackFixup</A></B>()</CODE><BR> If a black node has just been removed above this; this node is the root of a black-height balanced tree, but the ancestors of this node are shy one black node on this branch.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#blackHeight()">blackHeight</A></B>()</CODE><BR> Returns the black height of this subtree.</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/RedBlackTree.html#consistency()">consistency</A></B>()</CODE><BR> Returns true if this node is consistently structured</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#consistentlyBlackHeight(int)">consistentlyBlackHeight</A></B>(int height)</CODE><BR> Checks to make sure that the black height of tree is height</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/RedBlackTree.html#contains(java.lang.Comparable)">contains</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> c)</CODE><BR> Determines if the red black search tree contains a value</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/RedBlackTree.html#depth()">depth</A></B>()</CODE><BR> Compute the depth of a node.</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/Comparable.html">Comparable</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#get(java.lang.Comparable)">get</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> c)</CODE><BR> Returns a c-equivalent value from tree, or null.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>private <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/RedBlackTree.html#getColor()">getColor</A></B>()</CODE><BR> Support method for <A HREF="../structure/RedBlackTree.html#toString()"><CODE>toString()</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>private <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/RedBlackTree.html#getHand()">getHand</A></B>()</CODE><BR> Support method for <A HREF="../structure/RedBlackTree.html#toString()"><CODE>toString()</CODE></A>.</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/RedBlackTree.html#hashCode()">hashCode</A></B>()</CODE><BR> Computes hash code associated with values of tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../structure/RedBlackTree.html">RedBlackTree</A></CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#insert(java.lang.Comparable)">insert</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Comparable.html">Comparable</A> c)</CODE><BR> Insert a (possibly duplicate) value to red-black search tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../structure/RedBlackTree.html#isBlack()">isBlack</A></B>()</CODE>?? 快捷鍵說明
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