java problem

[008325]

class SlidersPanel extends JPanel implements MouseMotionListener{
double nx,nhue;
double nxx = 20;

public void paint(Graphics g) {
g.setColor(Color.black);
g.drawString("HUE:",20,25);
int hue_step = 1;
float sat = 1;
Color c;



for (int h=0; h<=360 ;h += hue_step) {
float hue = h / 360F;
if (hue>=1f) hue = 0f;
c = Color.getHSBColor(hue, sat, 1F);
g.setColor(c);
g.fillRect(h+20, 30, 1, 30);



}
g.setColor(Color.black);

g.drawLine((int)nxx,(int)60,(int)nxx-5,(int)60+5);
g.drawLine((int)nxx,(int)60,(int)nxx+5,(int)60+5);
g.drawLine((int)nxx-5,(int)60+5,(int)nxx+5,(int)60+5);


addMouseMotionListener(this);

}

public void mouseMoved(MouseEvent e){

this.setOpaque(false);
this.repaint();



nx = e.getX();


if(nx>380){nxx = 380;}
else if(nx<20){nxx = 20;}
else{nxx = nx;}

if(nx>380){nhue = 359;}
else if(nx<=20){nhue = 0;}
else{nhue = nx-21;}




}
public void mouseDragged(MouseEvent e){}

}


public class ABC {
public static void main(String s[]) {

JFrame Frame = new JFrame();
Container c = Frame.getContentPane();
JPanel TotalPanel = new JPanel();
TotalPanel.setLayout(null);

SlidersPanel sp = new SlidersPanel();
sp.setBounds(27,230,390,270);
TotalPanel.add(sp);

Chart ch = new Chart();
ch.setBounds(1,-20,380,300);
TotalPanel.add(ch);

Rects Rect = new Rects();
Rect.setBounds(420,-20,130,280);
TotalPanel.add(Rect);

c.add(TotalPanel);
Frame.setSize(720, 420);
Frame.setVisible(true);

}
}


i got the problem from this code
ABC new all Other Class
i want mouseMoved method to edit Class Chart object
but i can not "New" Chart in this method
you know , the Chart is dependence on ABC class now...

how can i do this ?

thanks

[hod139]

You don't have a chart class defined anywhere. You are going to have the same problem when you try to create a new Rects class. You have to define a class (either local and in the same file or global and in a new file) before you can use it.