import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;

/**
 *
 Create a JFrame class called Lab6Part3. Create a JFrame that mimics a volume and balance controller (for an audio system). The maximum volume of the device is 30 and the minimum level is zero, the maximum balance setting is 5 and the minimum balance setting is -5. Supply labels that show the current selected setting for each slider.
 • Create volume slider and add to frame
 • Create balance slider and add to frame
 • Add listeners to the volume slider and test
 • Add listeners to the balance slider and test
 • Create and add Label display of volume setting
 • Create and add Label display of balance setting

 */

public class Lab7Part3 extends JFrame  implements ChangeListener {

    private JLabel labelVolume = new JLabel("Current Volume: ");
    private JLabel labelBalance = new JLabel("Current Balance:");
    //JSlider
    private JSlider sliderVolume = new JSlider();
    private JSlider sliderBalance = new JSlider();

    private Lab7Part3(){

        JPanel thePanel = new JPanel ();
        JPanel thePanel1 = new JPanel ();
        JPanel thePanel2 = new JPanel ();

        //max and min value
        sliderVolume.setMaximum (30);
        sliderVolume.setMinimum (0);
        sliderBalance.setMaximum (5);
        sliderBalance.setMinimum (-5);

        sliderBalance.setValue (0);
        sliderVolume.setValue (0);


        sliderVolume.addChangeListener (this);
        sliderBalance.addChangeListener (this);

        thePanel1.add(sliderBalance);
        thePanel1.add (labelBalance);


        thePanel2.add(sliderVolume);
        thePanel2.add (labelVolume);

        thePanel.add (thePanel1,BorderLayout.NORTH);
        thePanel.add (thePanel2,BorderLayout.CENTER);

        getContentPane ().add (thePanel);
        setSize(500,200);
        setVisible(true);
    }
    public static void main(String[] args) {
        new Lab7Part3 ();

    }

    @Override
    public void stateChanged(ChangeEvent e) {
       labelVolume.setText("Current Volume: " + sliderVolume.getValue());
       labelBalance.setText ("Current Balance: " +sliderBalance.getValue ());
    }
}