Java Example Program / Sample Source Code
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JOptionPane;
class AnonymousEventExample {
public static void main(String args[]) {
Frame frame = new Frame("AnonymousEventExample");
Button button = new Button("A");
Panel p = new Panel();
p.add(button);
frame.add(button, BorderLayout.NORTH);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent event) {
String choice = event.getActionCommand();
JOptionPane.showMessageDialog(null, "You have clicked: "
+ choice);
}
});
frame.pack();
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
} |
|
|
