For example, when the user clicks on the mouse, the environment generates an event that it sends to the program. The program must then figure out what the mouse click means and act accordingly.This chapter cover
The main events are: • Initialization and exit functions (init (), start (), stop() and destroy ()). • Repainting and resizing (paint ()). • Mouse events (mouseUp (), mouseDown() and mouseDrag ()). • Keyboard events (keyUp() and keyDown ()). View chapter Book 1997,...
The Java SE 7 Advanced Platform, available for Java SE Suite, Java SE Advanced, and Java SE Support customers, is based on the current Java SE 7 release. For more information on installation and licensing of Java SE Suite and Java SE Advanced, visit Java SE Products Overview. See the fol...
For example, in a standard Swing or JavaFX application a number of event handlers are required for keyboard and mouse events. Rather than writing a separate event-handling class for each event, you can write something like this. 16 JButton testButton = new JButton("Test Button"); 17 test...
New Feature: JDK Flight Recorder Event for Deserialization A new JDK Flight Recorder (JFR) event has been added to monitor deserialization of objects. When JFR is enabled and the JFR configuration includes deserialization events, JFR will emit an event whenever the running program attempts to deseri...
There are two fundamental ways for users to provide input to a program: they can type on a keyboard, or they can select something (a button, a menu item, etc.) using a mouse. When you want a user to provide input to your program, you can display a list of choices to choose from...
You can find the demo's code inMouseEventDemo.javaandBlankArea.java. Here is the demo's mouse event handling code: public class MouseEventDemo ... implements MouseListener {//where initialization occurs://Register for mouse events on blankArea and the panel. blankArea.addMouseListener(this);...
Handling Events from Menu Items To detect when the user chooses aJMenuItem, you can listen for action events (just as you would for aJButton). To detect when the user chooses aJRadioButtonMenuItem, you can listen for either action events or item events, as described inHow to Use Radio...
updates to the ChartPanel class to support copying charts to the clipboard, panning and mouse-wheel zooming, and an overlay mechanism that supports crosshairs; enhancements to the auto-range calculation for axes, providing the ability to use subranges only and also to skip hidden series; updates...
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