Java by API/javax.swing/BoundedRangeModel

BoundedRangeModel: addChangeListener(ChangeListener x)

import java.awt.BorderLayout;
import javax.swing.BoundedRangeModel;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
import javax.swing.JScrollBar;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
  public static void main(String args[]) throws Exception {
    ChangeListener changeListener = new BoundedChangeListener();
    JScrollBar anotherJScrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
    BoundedRangeModel model = anotherJScrollBar.getModel();
    model.addChangeListener(changeListener);
    JFrame frame = new JFrame("ScrollBars R Us");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(anotherJScrollBar, BorderLayout.NORTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}
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 if (source instanceof JSlider) {
      JSlider theJSlider = (JSlider) source;
      if (!theJSlider.getValueIsAdjusting()) {
        System.out.println("Slider changed: " + theJSlider.getValue());
      }
    } else if (source instanceof JProgressBar) {
      JProgressBar theJProgressBar = (JProgressBar) source;
      System.out.println("ProgressBar changed: " + theJProgressBar.getValue());
    } else {
      System.out.println("Something changed: " + source);
    }
  }
}

BoundedRangeModel: getExtent()

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoundedRangeModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class MainClass {
  public static void main(final String args[]) {
    JFrame frame = new JFrame("Offset Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    final JTextField textField = new JTextField();
    panel.add(textField, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    JButton button = new JButton("Get Offset");
    ActionListener actionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        System.out.println("Offset: " + textField.getScrollOffset());
        System.out.println("Visibility: " + textField.getHorizontalVisibility());
        BoundedRangeModel model = textField.getHorizontalVisibility();
        int extent = model.getExtent();
        textField.setScrollOffset(extent);
      }
    };
    button.addActionListener(actionListener);
    frame.add(button, BorderLayout.SOUTH);
    frame.setSize(250, 150);
    frame.setVisible(true);
  }
}

BoundedRangeModel: getValue()

import java.awt.BorderLayout;
import javax.swing.BoundedRangeModel;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
import javax.swing.JScrollBar;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
  public static void main(String args[]) throws Exception {
    ChangeListener changeListener = new BoundedChangeListener();
    JScrollBar anotherJScrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
    BoundedRangeModel model = anotherJScrollBar.getModel();
    model.addChangeListener(changeListener);
    JFrame frame = new JFrame("ScrollBars R Us");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(anotherJScrollBar, BorderLayout.NORTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}
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 if (source instanceof JSlider) {
      JSlider theJSlider = (JSlider) source;
      if (!theJSlider.getValueIsAdjusting()) {
        System.out.println("Slider changed: " + theJSlider.getValue());
      }
    } else if (source instanceof JProgressBar) {
      JProgressBar theJProgressBar = (JProgressBar) source;
      System.out.println("ProgressBar changed: " + theJProgressBar.getValue());
    } else {
      System.out.println("Something changed: " + source);
    }
  }
}