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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><html> <head> <title>Lesson: Writing Event Listeners (The Java™ Tutorials > Creating a GUI with JFC/Swing)</title><style type="text/css"> .FigureCaption { margin-left: 1in; margin-right: 1in; font-family: sans-serif; font-size: smaller; text-align: justify; } #TopBar_bl { background: url(../../images/java_bar_bl.gif) 0 100% no-repeat; width: 100%; height: 60px; } #TopBar_br { background: url(../../images/java_bar_br.gif) 100% 100% no-repeat; width: 100%; height: 60px; } #TopBar_tl { background: url(../../images/java_bar_tl.gif) 0 0 no-repeat; width: 100%; height: 60px; } #TopBar_tr { background: url(../../images/java_bar_tr.gif) 100% 0 no-repeat; width: 100%; height: 60px; } #TopBar { background: #35556B url(../../images/java_bar.gif); margin: 10px 10px 0 10px; height:60px; min-width:700px; color: white; font-family: sans-serif; font-weight: bold; } @media print { #BreadCrumbs, #Download { display: none; } } #TopBar_right { line-height: 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cookieValue == 'yes'; } } return true; } function showLeft(b) { var contents = document.getElementById("LeftBar"); var main = document.getElementById("MainFlow"); var toggle = document.getElementById("ToggleLeft"); if (b) { contents.className = "LeftBar_shown"; main.className = "MainFlow_indented"; toggle.innerHTML = "Hide the TOC"; document.cookie = 'tutorial_showLeftBar=yes; path=/'; } else { contents.className = "LeftBar_hidden"; main.className = "MainFlow_wide"; toggle.innerHTML = "Show the TOC"; document.cookie = 'tutorial_showLeftBar=no; path=/'; } } function toggleLeft() { showLeft(document.getElementById("LeftBar").className == "LeftBar_hidden"); document.getElementById("ToggleLeft").blur(); } function load() { showLeft(leftBar()); document.getElementById("ToggleLeft").style.display="inline"; } </script> </head><body onload="load()"> <div id=TopBar> <div id=TopBar_tr> <div id=TopBar_tl> <div id=TopBar_br> <div id=TopBar_bl> <div id=TopBar_right> <a target="_blank" href="http://java.sun.com/javase/6/download.jsp">Download the JDK</a> <br> <a href="../../search.html" target="_blank">Search the Tutorials</a> <br> <a href="javascript:toggleLeft()" id="ToggleLeft">Hide the TOC</a> </div> </div> </div> </div> </div> </div> <div id=LeftBar> <div id=Contents> <div class="nolinkLESSON">Writing Event Listeners</div><div class="linkAHEAD"><a href="intro.html">Introduction to Event Listeners</a></div><div class="linkAHEAD"><a href="generalrules.html">General Information about Writing Event Listeners</a></div><div class="linkAHEAD"><a href="eventsandcomponents.html">Listeners Supported by Swing Components</a></div><div class="linkAHEAD"><a href="handling.html">Implementing Listeners for Commonly Handled Events</a></div><div class="linkBHEAD"><a href="actionlistener.html">How to Write an Action Listener</a></div><div class="linkBHEAD"><a href="caretlistener.html">How to Write a Caret Listener</a></div><div class="linkBHEAD"><a href="changelistener.html">How to Write a Change Listener</a></div><div class="linkBHEAD"><a href="componentlistener.html">How to Write a Component Listener</a></div><div class="linkBHEAD"><a href="containerlistener.html">How to Write a Container Listener</a></div><div class="linkBHEAD"><a href="documentlistener.html">How to Write a Document Listener</a></div><div class="linkBHEAD"><a href="focuslistener.html">How to Write a Focus Listener</a></div><div class="linkBHEAD"><a href="internalframelistener.html">How to Write an Internal Frame Listener</a></div><div class="linkBHEAD"><a href="itemlistener.html">How to Write an Item Listener</a></div><div class="linkBHEAD"><a href="keylistener.html">How to Write a Key Listener</a></div><div class="linkBHEAD"><a href="listdatalistener.html">How to Write a List Data Listener</a></div><div class="linkBHEAD"><a href="listselectionlistener.html">How to Write a List Selection Listener</a></div><div class="linkBHEAD"><a href="mouselistener.html">How to Write a Mouse Listener</a></div><div class="linkBHEAD"><a href="mousemotionlistener.html">How to Write a Mouse-Motion Listener</a></div><div class="linkBHEAD"><a href="mousewheellistener.html">How to Write a Mouse-Wheel Listener</a></div><div class="linkBHEAD"><a href="propertychangelistener.html">How to Write a Property Change Listener</a></div><div class="linkBHEAD"><a href="tablemodellistener.html">How to Write a Table Model Listener</a></div><div class="linkBHEAD"><a href="treeexpansionlistener.html">How to Write a Tree Expansion Listener</a></div><div class="linkBHEAD"><a href="treemodellistener.html">How to Write a Tree Model Listener</a></div><div class="linkBHEAD"><a href="treeselectionlistener.html">How to Write a Tree Selection Listener</a></div><div class="linkBHEAD"><a href="treewillexpandlistener.html">How to Write a Tree-Will-Expand Listener</a></div><div class="linkBHEAD"><a href="undoableeditlistener.html">How to Write an Undoable Edit Listener</a></div><div class="linkBHEAD"><a href="windowlistener.html">How to Write Window Listeners</a></div><div class="linkAHEAD"><a href="api.html">Listener API Table</a></div><div class="linkAHEAD"><a href="problems.html">Solving Common Event-Handling Problems</a></div></div> </div> <div id=MainFlow class=MainFlow_indented> <div class=PrintHeaders> <b>Trail:</b> Creating a GUI with JFC/Swing </div> <div id=BreadCrumbs> <a href=../../index.html target=_top>Home Page</a> > <a href=../index.html target=_top>Creating a GUI with JFC/Swing</a> </div> <div class=NavBit> <a target=_top href=../dnd/index.html>« Previous</a> • <a target=_top href=../TOC.html>Trail</a> • <a target=_top href=intro.html>Next »</a> </div> <p style="text-align: center"> <a href=examples/index.html>Examples Index</a> </p> <div id=PageTitle>Lesson: Writing Event Listeners</div> <blockquote><blockquote> <hr> <strong>This section has not yet been updated to reflect features and conventions of the latest release, JDK 6.0. </strong> <hr> </blockquote>This lesson gives you details about writing event listeners.It assumes you've already read the section <a class="TutorialLink" target="_top" href="../learn/example2.html#handlingEvents">Handling Events</a>,which gives an overview of the event model in the<a class="TutorialLink" target="_top" href="../learn/index.html">Learning Swing by Example</a> lesson.<p>You might not need to read this section, at all.Your first source of information for event informationshould be the how-to section for the component in question.You can find the appropriate section using the<a class="TutorialLink" target="_top" href="../components/components.html">A Visual Index to the Swing Components</a>.Each component's section shows codefor handling the events most commonly neededwhen implementing the component.For example, <a class="TutorialLink" target="_top" href="../components/button.html#checkbox">How to Use Check Boxes</a> shows you how to handle mouse clicks on check boxesusing an item listener.</blockquote><h3><a href="intro.html">Some Simple Event-Handling Examples</a></h3><blockquote>The programs in this section illustrateevents and event handling.</blockquote><h3><a href="generalrules.html">General Information about Writing Event Listeners</a></h3><blockquote>This section provides informationthat's useful for handling all types of events.One of the topics using adapters and inner classes to implement event handlers.</blockquote><h3><a href="eventsandcomponents.html">Listeners Supported by Swing Components</a></h3><blockquote>This is <em>the</em> place to find out which Swing components can fire which kinds of events.You might want to bookmark this section so you can easily find its quick-reference table.</blockquote><h3><a href="handling.html">Implementing Listeners for Commonly Handled Events</a></h3><blockquote>This section hasdetailed information and examplesof writing each common kind of event listener.</blockquote><h3><a href="api.html">Listener API Table</a></h3><blockquote>This section featuresa quick-reference table thatshows each listener,its adapter class (if any),and its methods.</blockquote><h3><a href="problems.html">Solving Common Event-Handling Problems</a></h3><blockquote>If you're having some hard-to-debug problems related tohandling events, you might find the solution here.</blockquote><h3><a class="TutorialLink" target="_top" href="../QandE/questions-ch5.html">Questions and Exercises</a></h3> <blockquote>Try these questions and exercises to test what you've learned in this lesson.</blockquote> </blockquote> <div class=NavBit> <a href=../dnd/index.html>« Previous</a> • <a href=../TOC.html>Trail</a> • <a href=intro.html>Next »</a> </div> </div> <div id=Footer><div id=TagNotes> Problems with the examples? Try <a target="_blank" href=../../information/run-examples.html>Compiling and Running the Examples: FAQs</a>. <br> Complaints? Compliments? Suggestions? <a target="_blank" href="http://developer.sun.com/contact/tutorial_feedback.jsp">Give us your feedback</a>.<br><br> <a target="_blank" href="../../information/copyright.html">Copyright</a> 1995-2006 Sun Microsystems, Inc. All rights reserved. <span id=Download></span></div> </div> <div class=PrintHeaders> <b>Previous page:</b> Previous Lesson <br><b>Next page:</b> Introduction to Event Listeners </div> </body></html> ⌨️ 快捷键说明
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