HELP!!!!??? Please???? I have ghosts....

Question

for some reason my buttons and everything are repainting themselves offset from eachother....I need to finish by tonight. If anyone can help I'd appreciate it. It's suppose to show a tree and if certain boxes are checked it will draw these items. Once the buyIt button is clicked it's suppose to total the price and put it into input. Here's the code.
import javax.swing.*; // Packages used
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.applet.*;
public class DrawingOnPanel extends JFrame
     public DrawingOnPanel(){
          //super(title);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          TreeStore1 ts = new TreeStore1();//inner class object
          getContentPane().add(ts);
          setSize(600,600);
          setVisible(true);
public class TreeStore1 extends JPanel implements ActionListener
     private JLabel prompt1 = new JLabel("Merry Christmas!");
private JLabel prompt2 = new JLabel("What would you like on you tree? ");
private JLabel prompt3 = new JLabel("Your total is: ");
private JButton buyIt = new JButton("Buy It!");
private JPanel myPanel = new JPanel();
     private double treePrices=19.95;
     private double lights=20;
     private double bulbs=15;
     private double star=9.99;
     private JTextField input = new JTextField(13);
     DecimalFormat format=new DecimalFormat("$#,###.00");
     Color greenx = new Color(0,17,0);
Color greeny = new Color(0,34,0);
     //day tree start
Color green1 = new Color(0,51,0);
Color green2 = new Color(0,68,0);
Color green3 = new Color(0,85,0);
Color green4 = new Color(0,102,0);
Color green5 = new Color(0,119,0);
//night tree end
Color green6 = new Color(0,136,0);
Color green7 = new Color(0,153,0);
Color green8 = new Color(0,170,0);
Color green9 = new Color(0,187,0);
Color green10 = new Color(0,204,0);
     Color green11 = new Color(0,221,0);
Color green12 = new Color(0,238,0);
Color green13 = new Color(0,255,0);
//day tree end
Color brown = new Color(102,51,0);
     JCheckBox treeBox = new JCheckBox("Christmas Tree", true);
     JCheckBox lightsBox = new JCheckBox("Lights", false);
     JCheckBox bulbsBox = new JCheckBox("Bulbs", false);
     JCheckBox starBox = new JCheckBox("Star", false);
     Font bigFont = new Font("ComicSans",Font.BOLD,14);
     Font biggerFont = new Font("ComicSans",Font.BOLD,22);
public TreeStore1 () {
add(prompt1);
add(prompt2);
add(prompt3);
add(treeBox);
add(lightsBox);
add(bulbsBox);
add(starBox);
add(buyIt);
treeBox.setFont(bigFont);
lightsBox.setFont(bigFont);
     bulbsBox.setFont(bigFont);
starBox.setFont(bigFont);
prompt1.setFont(biggerFont);
     input.setEditable( false );
buyIt.addActionListener(this);
     public void paintComponent(Graphics tree){
     /*     prompt1.repaint();
          prompt2.repaint();
          treeBox.repaint();
          lightsBox.repaint();
     bulbsBox.repaint();
     starBox.repaint();
     prompt3.repaint();
          buyIt.repaint();
          input.repaint();*/
          prompt1.setLocation(250,5);
          prompt2.setLocation(5,55);
          treeBox.setLocation(5,105);
          lightsBox.setLocation(5,155);
     bulbsBox.setLocation(5,205);
     starBox.setLocation(5,255);
     prompt3.setLocation(20,355);
          buyIt.setLocation(100,600);
          input.setLocation(220,600);
          tree.setColor(brown);
tree.fillRect(375,450,30,40);
          for(int t=230;t<550;t+=1)
     if(t<254)
          tree.setColor(green1);
     else if(t<278)
          tree.setColor(green2);
     else if(t<302)
          tree.setColor(green3);
     else if(t<326)
          tree.setColor(green4);
     else if(t<350)
          tree.setColor(green5);
else if(t<374)
          tree.setColor(green6);
     else if(t<398)
          tree.setColor(green7);
     else if(t<422)
          tree.setColor(green8);
     else if(t<447)
          tree.setColor(green9);
else if(t<472)
          tree.setColor(green10);
     else if(t<498)
          tree.setColor(green11);
     else if(t<522)
          tree.setColor(green12);
else
               tree.setColor(green13);
          tree.drawLine(390,300,t,450);
//second tree
for(int t=250;t<525;t+=1)
     if(t<270)
          tree.setColor(green1);
     else if(t<292)
          tree.setColor(green2);
     else if(t<314)
          tree.setColor(green3);
     else if(t<336)
          tree.setColor(green4);
     else if(t<358)
          tree.setColor(green5);
else if(t<380)
          tree.setColor(green6);
     else if(t<400)
          tree.setColor(green7);
     else if(t<420)
          tree.setColor(green8);
     else if(t<440)
          tree.setColor(green9);
else if(t<460)
          tree.setColor(green10);
     else if(t<480)
          tree.setColor(green11);
     else if(t<500)
          tree.setColor(green12);
else
               tree.setColor(green13);
          tree.drawLine(390,260,t,410);
//third tree
for(int t=265;t<515;t+=1)
     if(t<285)
          tree.setColor(green1);
     else if(t<305)
          tree.setColor(green2);
     else if(t<325)
          tree.setColor(green3);
     else if(t<345)
          tree.setColor(green4);
     else if(t<365)
          tree.setColor(green5);
else if(t<385)
          tree.setColor(green6);
     else if(t<405)
          tree.setColor(green7);
     else if(t<425)
          tree.setColor(green8);
     else if(t<445)
          tree.setColor(green9);
else if(t<465)
          tree.setColor(green10);
     else if(t<485)
          tree.setColor(green11);
     else if(t<505)
          tree.setColor(green12);
else
               tree.setColor(green13);
          tree.drawLine(390,260,t,380);
/*     prompt1.repaint();
          prompt2.repaint();
          treeBox.repaint();
          lightsBox.repaint();
     bulbsBox.repaint();
     starBox.repaint();
     prompt3.repaint();
          buyIt.repaint();
          input.repaint();*/
public void actionPerformed(ActionEvent e) {
// if (e.getSource() == buyIt) {
public static void main(String args[]) {
new DrawingOnPanel();
} // main()
}

Answer 1

Thanks for all the unformatted code it's quite a treat....
Anyway. When you update/repaint/paint etc you need to paint over the old stuff.
- set the graphics color to be whatever you want the background to be
- use fill rect starting from 0 x and 0 y and to the dimensions of your image