import java.awt.event.MouseEvent; import java.awt.event.MouseMotionAdapter; import javax.swing.JFrame; import javax.swing.JTextField; public class Main { public static void main(String[] argv) throws Exception { JTextField component = new JTextField(); component.addMouseMotionListener(new MyMouseMot...
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 covers two different event models, or ways of handling events. In Java 1.0.2 and ...
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 chapterExplore book...
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);...
8.1.1 Example: Handling a Button Click 386 8.1.2 Becoming Comfortable with Inner Classes 391 8.1.3 Creating Listeners Containing a Single Method Call 394 8.1.4 Example: Changing the Look-and-Feel 395 8.1.5 Adapter Classes 399 8.2 Actions 403 8.3 Mouse Events 411 8.4 ...
such as a mouse click on the clear time and there is no ray of diamonds, mouse events including click to or no click to ray trigger events and click to restart and menu trigger events, clearing out squares no ray will need to use the "recursive" methods to make the function can be ...
Java GUI Applet Event Handling AWT Swing Swing Component JDBCEvent Handling Any program that uses GUI (graphical user interface) such as Java application written for windows, is event driven. Event describes the change of state of any object. Example : Pressing a button, Entering a character ...
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...
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...