Handeling events

Question

I'm quite bad at explaining my problems.....but here goes!
package harmonics;
import java.awt.BorderLayout;
import javax.swing.*;
public class MainProgram
     public static JPanel jpanNorth, jpanSouth;
     public static void main(String args[])
          JFrame jfrmMain = new JFrame("Harmonics Program");
          jpanNorth = new JPanel();
          jpanSouth = new JPanel();
          Producer sp = new Producer(jpanSouth);
          jfrmMain.getContentPane().add(jpanNorth, BorderLayout.NORTH);
          jfrmMain.getContentPane().add(jpanSouth, BorderLayout.SOUTH);
          jfrmMain.setSize(500,500);
          jfrmMain.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
          jfrmMain.setVisible(true);
package harmonics;
import javax.swing.JPanel;
import javax.swing.JSlider;
public class Producer
     public static JSlider sliders[];
     public Producer(JPanel pan)
          sliders = new JSlider[10];
          SliderChanger sliderMoved = new SliderChanger();
          for(int i = 0; i < sliders.length; i++)
               sliders[i] = new JSlider(1,0,100,10);
               sliders.addChangeListener(sliderMoved);
               pan.add(sliders[i]);
     public static int[] getSliderValues()
          int sliderValues[];
          sliderValues = new int[10];
          for(int i = 0; i < sliders.length; i++)
               sliderValues[i] = sliders[i].getValue();
          return sliderValues;
package harmonics;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class SliderChanger implements ChangeListener
     public Points p;
     public void stateChanged(ChangeEvent e)
          int sliderValues[] = null;
          for(int i= 0; i < 10;i++)
               sliderValues = new int[10];
               sliderValues = Producer.getSliderValues();
          p = new Points(sliderValues);
          p.printSliderValues();
package harmonics;
public class Points
     private int SliderValues[];
     private double ScaledSliderValues[];
     private double AllHarmonicValues[][];
     private double NewWaveValues[];
     public Points(int vals[])
          SliderValues = new int[10];
          System.arraycopy(vals, 0, SliderValues, 0, 10);
     public void printSliderValues()
          for(int i= 0; i < 10;i++)
               System.out.print(SliderValues[i] + " ");
          System.out.print("\n");
Right so there is the code, and here is my problem. As you can see I can handle the slider event, but I want to have another class called consumer which recieves a points object and does stuff with it, how would I do that?
Cheers for any help
Triff

Answer 1

          Consumer c = new Consumer();
          SliderChanger sliderMoved = new SliderChanger(c);
package harmonics;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class SliderChanger implements ChangeListener
     public Points p;
     private Consumer c;
     public SliderChanger(Consumer c) {
          this.c = c;
     public void stateChanged(ChangeEvent e)
          int sliderValues[] = null;
          for(int i= 0; i < 10;i++)
               sliderValues = new int[10];
               sliderValues = Producer.getSliderValues();
          p = new Points(sliderValues);
          p.printSliderValues();
          if(c != null) {
               c.addPoints(p);
package harmonics;
public class Consumer
     public Consumer() {
     public void addPoints(Points p) {
          // do something with it....
}