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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 23:38:12 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class ActionMap</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/ActionMap.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/AbstractListModel.html"><B>PREV CLASS</B></A> <A HREF="../../javax/swing/BorderFactory.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="ActionMap.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <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">javax.swing</FONT><BR>Class ActionMap</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<B>javax.swing.ActionMap</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../java/io/Serializable.html">Serializable</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../javax/swing/plaf/ActionMapUIResource.html">ActionMapUIResource</A></DD></DL><HR><DL><DT>public class <B>ActionMap</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A><DT>implements <A HREF="../../java/io/Serializable.html">Serializable</A></DL><P><code>ActionMap</code> provides mappings from <code>Object</code>s (called <em>keys</em> or <em><code>Action</code> names</em>) to <code>Action</code>s. An <code>ActionMap</code> is usually used with an <code>InputMap</code> to locate a particular action when a key is pressed. As with <code>InputMap</code>, an <code>ActionMap</code> can have a parent that is searched for keys not defined in the <code>ActionMap</code>. <p>As with <code>InputMap</code> if you create a cycle, eg: <pre> ActionMap am = new ActionMap(); ActionMap bm = new ActionMap(): am.setParent(bm); bm.setParent(am); </pre> some of the methods will cause a StackOverflowError to be thrown.<P><DL><DT><B>See Also: </B><DD><A HREF="../../serialized-form.html#javax.swing.ActionMap">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== 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/ActionMap.html#ActionMap()">ActionMap</A></B>()</CODE><BR> Creates an <code>ActionMap</code> with no parent and no mappings.</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="../../java/lang/Object.html">Object</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/ActionMap.html#allKeys()">allKeys</A></B>()</CODE><BR> Returns an array of the keys defined in this <code>ActionMap</code> and its parent.</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/ActionMap.html#clear()">clear</A></B>()</CODE><BR> Removes all the mappings from this <code>ActionMap</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/swing/Action.html">Action</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/ActionMap.html#get(java.lang.Object)">get</A></B>(<A HREF="../../java/lang/Object.html">Object</A> key)</CODE><BR> Returns the binding for <code>key</code>, messaging the parent <code>ActionMap</code> if the binding is not locally defined.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/swing/ActionMap.html">ActionMap</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/ActionMap.html#getParent()">getParent</A></B>()</CODE><BR> Returns this <code>ActionMap</code>'s parent.</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/ActionMap.html#keys()">keys</A></B>()</CODE><BR> Returns the <code>Action</code> names that are bound in this <code>ActionMap</code>.</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/ActionMap.html#put(java.lang.Object, javax.swing.Action)">put</A></B>(<A HREF="../../java/lang/Object.html">Object</A> key, <A HREF="../../javax/swing/Action.html">Action</A> action)</CODE><BR> Adds a binding for <code>key</code> to <code>action</code>.</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/ActionMap.html#remove(java.lang.Object)">remove</A></B>(<A HREF="../../java/lang/Object.html">Object</A> key)</CODE><BR> Removes the binding for <code>key</code> from this <code>ActionMap</code>.</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/ActionMap.html#setParent(javax.swing.ActionMap)">setParent</A></B>(<A HREF="../../javax/swing/ActionMap.html">ActionMap</A> map)</CODE><BR> Sets this <code>ActionMap</code>'s parent.</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/ActionMap.html#size()">size</A></B>()</CODE><BR> Returns the number of <code>KeyStroke</code> bindings.</TD></TR>⌨️ 快捷键说明
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