public void paintComponent(Graphics g){
        super.paintComponent(g);



        Rectangle r = new Rectangle(500,300,250,400);
         g.setColor(jpp.bodyColour);
        g.fillRect((int)r.getX(),(int)r.getY(),(int)r.getHeight(),(int)r.getWidth());


        g.setColor(Color.BLUE);
        g.drawString("banana", 50, 60);

    }

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;


public class TestProjectJPanel extends JFrame {



    public JButton b;
    public JButton u;
    public JButton l;
    public JButton r;

    public String s;

    public Color color = (Color.WHITE);
    public JPanel panel;
    public Color bodyColour;
    public Color doorColour;
    public Color wheelColour;





    public TestProjectJPanel(){

        JFrame f = new JFrame();

        panel = new JPanel();
        panel.setBackground(color);

        // bodyColour button
        b = new JButton("Body Colour");
        b.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                        bodyColour = JColorChooser.showDialog(null, "Pick the colour", bodyColour);
                        if(bodyColour==null)
                            bodyColour = (Color.RED);


                    }
                }
                );

        u = new JButton("Wheel Colour");
        u.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                        wheelColour = JColorChooser.showDialog(null, "Pick the colour", wheelColour);
                        if(wheelColour==null)
                            wheelColour = (Color.BLACK);

                    }
                }
                );

        l = new JButton("Door Colour");
        l.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                        doorColour = JColorChooser.showDialog(null, "Pick the colour", doorColour);
                        if(doorColour==null)
                            doorColour = (Color.RED);

                    }
                }
                );

        r = new JButton("Change Name");
        r.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                        s = JOptionPane.showInputDialog("What name do you want to change it to?");



                    }
                }
                );

                    }


        }