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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 Thu Apr 27 23:42:50 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class DefaultTreeModel</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="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <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="class-use/DefaultTreeModel.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </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-files/index-1.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><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/swing/tree/DefaultTreeCellRenderer.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/swing/tree/DefaultTreeSelectionModel.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="DefaultTreeModel.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">javax.swing.tree</FONT><BR>Class DefaultTreeModel</H2><PRE><A HREF="../../../java/lang/Object.html">java.lang.Object</A> | +--<B>javax.swing.tree.DefaultTreeModel</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../java/io/Serializable.html">Serializable</A>, <A HREF="../../../javax/swing/tree/TreeModel.html">TreeModel</A></DD></DL><HR><DL><DT>public class <B>DefaultTreeModel</B><DT>extends <A HREF="../../../java/lang/Object.html">Object</A><DT>implements <A HREF="../../../java/io/Serializable.html">Serializable</A>, <A HREF="../../../javax/swing/tree/TreeModel.html">TreeModel</A></DL><P>A simple tree data model that uses TreeNodes. For further information and examples that use DefaultTreeModel, see <a href="http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html">How to Use Trees</a> in <em>The Java Tutorial.</em> <p> <strong>Warning:</strong> Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. A future release of Swing will provide support for long term persistence.<P><DL><DT><B>See Also: </B><DD><A HREF="../../../serialized-form.html#javax.swing.tree.DefaultTreeModel">Serialized Form</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>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/swing/tree/DefaultTreeModel.html#asksAllowsChildren">asksAllowsChildren</A></B></CODE><BR> Determines how the <code>isLeaf</code> method figures out if a node is a leaf node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../../javax/swing/event/EventListenerList.html">EventListenerList</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/swing/tree/DefaultTreeModel.html#listenerList">listenerList</A></B></CODE><BR> Listeners.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../../javax/swing/tree/TreeNode.html">TreeNode</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/swing/tree/DefaultTreeModel.html#root">root</A></B></CODE><BR> Root of the tree.</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="../../../javax/swing/tree/DefaultTreeModel.html#DefaultTreeModel(javax.swing.tree.TreeNode)">DefaultTreeModel</A></B>(<A HREF="../../../javax/swing/tree/TreeNode.html">TreeNode</A> root)</CODE><BR> Creates a tree in which any node can have children.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/swing/tree/DefaultTreeModel.html#DefaultTreeModel(javax.swing.tree.TreeNode, boolean)">DefaultTreeModel</A></B>(<A HREF="../../../javax/swing/tree/TreeNode.html">TreeNode</A> root, boolean asksAllowsChildren)</CODE><BR> Creates a tree specifying whether any node can have children, or whether only certain nodes can have children.</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="../../../javax/swing/tree/DefaultTreeModel.html#addTreeModelListener(javax.swing.event.TreeModelListener)">addTreeModelListener</A></B>(<A HREF="../../../javax/swing/event/TreeModelListener.html">TreeModelListener</A> l)</CODE><BR> Adds a listener for the TreeModelEvent posted after the tree changes.</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="../../../javax/swing/tree/DefaultTreeModel.html#asksAllowsChildren()">asksAllowsChildren</A></B>()</CODE><BR> Tells how leaf nodes are determined.</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="../../../javax/swing/tree/DefaultTreeModel.html#fireTreeNodesChanged(java.lang.Object, java.lang.Object[], int[], java.lang.Object[])">fireTreeNodesChanged</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> source, <A HREF="../../../java/lang/Object.html">Object</A>[] path, int[] childIndices, <A HREF="../../../java/lang/Object.html">Object</A>[] children)</CODE><BR> </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="../../../javax/swing/tree/DefaultTreeModel.html#fireTreeNodesInserted(java.lang.Object, java.lang.Object[], int[], java.lang.Object[])">fireTreeNodesInserted</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> source, <A HREF="../../../java/lang/Object.html">Object</A>[] path, int[] childIndices, <A HREF="../../../java/lang/Object.html">Object</A>[] children)</CODE><BR> </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="../../../javax/swing/tree/DefaultTreeModel.html#fireTreeNodesRemoved(java.lang.Object, java.lang.Object[], int[], java.lang.Object[])">fireTreeNodesRemoved</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> source, <A HREF="../../../java/lang/Object.html">Object</A>[] path, int[] childIndices, <A HREF="../../../java/lang/Object.html">Object</A>[] children)</CODE><BR> </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="../../../javax/swing/tree/DefaultTreeModel.html#fireTreeStructureChanged(java.lang.Object, java.lang.Object[], int[], java.lang.Object[])">fireTreeStructureChanged</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> source, <A HREF="../../../java/lang/Object.html">Object</A>[] path, int[] childIndices, <A HREF="../../../java/lang/Object.html">Object</A>[] children)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../java/lang/Object.html">Object</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/swing/tree/DefaultTreeModel.html#getChild(java.lang.Object, int)">getChild</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> parent, int index)</CODE><BR> Returns the child of <I>parent</I> at index <I>index</I> in the parent's child array.</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="../../../javax/swing/tree/DefaultTreeModel.html#getChildCount(java.lang.Object)">getChildCount</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> parent)</CODE><BR> Returns the number of children of <I>parent</I>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD>⌨️ 快捷键说明
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