class MouseClickListener implements MouseListener
    {
        public void mouseClicked(MouseEvent event)
        {
           int x = event.getX();
           int y = event.getY();
           System.out.println(x + " " + y);
           drawingPanel.drawPoints(x, y);

        }
        // Do­nothing methods
        public void mouseReleased(MouseEvent event) {}
        public void mousePressed(MouseEvent event) {}
        public void mouseEntered(MouseEvent event) {}
        public void mouseExited(MouseEvent event) {}
     }
    class ButtonListener implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
        {

            if (event.getSource()== changeColorButton){
                int r1 = Integer.parseInt(radiusField1.getText());
                int r2 = Integer.parseInt(radiusField2.getText());
                drawingPanel.changeColor();
                drawingPanel.changeRadius(r1, r2);
            }
            if (event.getSource()== clearButton){
                radiusField1.setText("10");
                radiusField2.setText("10");
                errorDisplay.setText("");
                drawingPanel.clearAll();
            }

        }
    }
   MouseListener listener1 = new MouseClickListener();
   drawingPanel.addMouseListener(listener1);

   ActionListener listener = new ButtonListener();
   changeColorButton.addActionListener(listener);
   radiusField1.addActionListener(listener);
   radiusField2.addActionListener(listener);
   clearButton.addActionListener(listener);
   frame.setVisible(true);
}
}

public class PanelDraw extends JPanel{
/*******Use the ArrayList for storing all the points drawn on the
  screen******/
ArrayList<Point> pointArray = new ArrayList<Point>();

ArrayList<Color> colorArray = new ArrayList<Color>();
ArrayList<Point> radiusArray = new ArrayList<Point>();
public PanelDraw(){

}
//this method automatically gets called when an object is created from
this class
//this method also gets called whenever the repaint() method is called
from another method
@Override
public void paintComponent(Graphics g) {

    super.paintComponent(g);
    Graphics2D myDrawing = (Graphics2D) g;

    /*****Write a loop here to draw all the points in the ArrayList******/
    for (int i = 0; i < pointArray.size(); i++) {
        myDrawing.setColor(colorArray.get(i));
        myDrawing.fillOval(pointArray.get(i).x,pointArray.get(i).y,10,10);

    }
   }
  public void drawPoints(int mouseX, int mouseY){
      /******Write code here to add a new Point to the ArrayList*******/
      //create Point where mouse was clicked
      Point p = new Point(mouseX,mouseY);

      //add the Point to the ArrayList
      pointArray.add(p);
      //System.out.println(this.getForeground());
      //add the current color to the ArrayList
      colorArray.add(this.getForeground());

      repaint();
 }

public void changeColor(){
 //change drawing color of the panel color every time this method is
 called
    int red = (int) (Math.random() * 256);
    int green = (int) (Math.random() * 256);
    int blue = (int) (Math.random() * 256);

 this.setForeground(new Color(red,green,blue));
}
public void changeRadius(int r1, int r2){
    Point r = new Point(r1,r1);
    radiusArray.add(r);
}
public void clearAll(){
   pointArray.clear();
   colorArray.clear();
   radiusArray.clear();
   repaint();
}
}