DialogDemoLauncher - The DialogDemoLauncher applet displays...

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/* The DialogDemoLauncher applet displays a button. When the user clicks the button, a frame is opened that demos the MessageDialog class. */ * import java.awt.*; import java.awt.event.*; import java.applet.Applet; import java.util.Date; i public class DialogDemoLauncher extends Applet implements ActionListener { p DemoFrame demo; // the main frame for the demo; this is null if the window is not open n Button launchButton; // a button for opening the window public void init() { // initialize the applet setBackground(Color.white); setLayout(new BorderLayout()); launchButton = new Button("Launch DialogDemo"); add("Center",launchButton); launchButton.addActionListener(this); } // end init(); synchronized public void actionPerformed(ActionEvent evt) { // respond to a click on the button; if no window // is open, open one; if a window is open, close it // by calling its dispose() method. if (demo == null) { demo = new DemoFrame(); launchButton.setLabel("Close DialogDemo"); demo.addWindowListener(new FrameListener()); // This object will listen for the window // event that occurs when the window closes.
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