/./././././././././
# ButtonExample.java Uses the following classes:
* CloseableFrame.java
* FgReporter.java
* BgReporter.java
* SizeReporter.java
******************
ButtonExample.java
******************
import java.awt.*;
import java.awt.event.*;
/././././././././././
public class ButtonExample extends CloseableFrame {
public static void main(String[] args) {
new ButtonExample();
}
public ButtonExample() {
super("Using ActionListeners");
setLayout(new FlowLayout());
Button b1 = new Button("Button 1");
Button b2 = new Button("Button 2");
Button b3 = new Button("Button 3");
b1.setBackground(Color.lightGray);
b2.setBackground(Color.gray);
b3.setBackground(Color.darkGray);
FgReporter fgReporter = new FgReporter();
BgReporter bgReporter = new BgReporter();
SizeReporter sizeReporter = new SizeReporter();
b1.addActionListener(fgReporter);
b2.addActionListener(fgReporter);
b2.addActionListener(bgReporter);
b3.addActionListener(fgReporter);
b3.addActionListener(bgReporter);
b3.addActionListener(sizeReporter);
add(b1);
add(b2);
add(b3);
setSize(350, 100);
setVisible(true);
}
}
/./././././././././
FgReporter.java
***************
import java.awt.event.*;
import java.awt.*;
/././././././././././
public class FgReporter implements ActionListener {
public void actionPerformed(ActionEvent event) {
Component c = (Component)event.getSource();
System.out.println("Foreground: " + c.getForeground());
}
}
****************
BgReporter.java
****************
/././././././././
import java.awt.event.*;
import java.awt.*;
/././././././././././././
public class BgReporter implements ActionListener {
public void actionPerformed(ActionEvent event) {
Component c = (Component)event.getSource();
System.out.println("Background: " + c.getBackground());
}
}
/././././././././././
SizeReporter.java
***********************
import java.awt.event.*;
import java.awt.*;
/././././././././
public class SizeReporter implements ActionListener {
public void actionPerformed(ActionEvent event) {
Component c = (Component)event.getSource();
Dimension d = c.getSize();
System.out.println("Size: " + d.width + "x" + d.height);
}
}
********************
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