import java.awt.BorderLayout;
import javax.swing.BoundedRangeModel;
import javax.swing.JFrame;
import javax.swing.JScrollBar;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
class BoundedChangeListener implements ChangeListener {
public void stateChanged(ChangeEvent changeEvent) {
Object source = changeEvent.getSource();
if (source instanceof BoundedRangeModel) {
BoundedRangeModel aModel = (BoundedRangeModel) source;
if (!aModel.getValueIsAdjusting()) {
System.out.println("Changed: " + aModel.getValue());
}
} else {
System.out.println("Something changed: " + source);
}
}
}
public class ScrollBarSample {
public static void main(String args[]) {
ChangeListener changeListener = new BoundedChangeListener();
JScrollBar aJScrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
BoundedRangeModel model = aJScrollBar.getModel();
model.addChangeListener(changeListener);
JFrame frame = new JFrame("ScrollBars R Us");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(aJScrollBar, BorderLayout.NORTH);
frame.setSize(300, 200);
frame.setVisible(true);
}
}