I have my code down to 3 errors and can not understand why I am getting these error message. Can someone please help me understand what I am doing wrong. Here is my code again and the error message that I am getting.

import java.awt.*;
import java.awt.event.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.text.*;
import javacard.framework.Applet;
import javax.swing.*;
 

public class PieChart2
{
    public static void main(String[] args)
    {
        JFrame f = new JFrame("Pie Chart");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new PieChartPanel());
        f.setSize(350,300);
        f.setLocation(300,300);
        f.setVisible(true);
    }

    private static class JFrame {

        public JFrame(String pie_Chart) {
        }
    }

    private static class PieChartPanel {

        public PieChartPanel() {
        }
    }
}
/** set as enum

package PieChartPanel extends JPanel
{
    BufferedImage image;
    final int PAD = 30;
    Font font;
    NumberFormat numberFormat;
    
  public PieChartPanel()
    {
        font = new Font("Book Antiqua", Font.BOLD, 20);
        numberFormat = NumberFormat.getPercentInstance();
        addMouseListener(new Visibility(this));
        addComponentListener(new ComponentAdapter()
        {});
    }
 protected void paintComponent(Graphics graphics)
    {
        super.paintComponent(graphics);
        Graphics2D graphics2d = (Graphics2D)graphics;
        graphics2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        createChartImage();
        graphics2d.drawImage(image, 0, 0, this);
    }
    private void createChartImage()
    {
        int[] marks = { 85, 10, 5 };
        int width = getWidth();
        int height = getHeight();
        int cp = width/2;
        int cq = height/2;
        image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        g2.setPaint(Color.yellow);
        g2.fillRect(0, 0, width, height);
        g2.setPaint(Color.blue);
        int pie = Math.min(width,height) - 2*PAD;
        g2.draw(new Ellipse2D.Double(cp - pie/2, cq - pie/2, pie, pie));
        double total = 0;
        for(int j = 0; j < marks.length; j++)
            total += marks[j];
        double theta = 0, phi = 0;
        double p, q;
        for(int j = 0; j < marks.length; j++)
        {
            p = cp + (pie/2) * Math.cos(theta);
            q = cq + (pie/2) * Math.sin(theta);
            g2.draw(new Line2D.Double(cp, cq, p, q));
            phi = (marks[j]/total) * 2 * Math.PI;
            p = cp + (9*pie/24) * Math.cos(theta + phi/2);
            q = cq + (9*pie/24) * Math.sin(theta + phi/2);
            g2.setFont(font);
            String st = String.valueOf(marks[j]);
            FontRenderContext frc = g2.getFontRenderContext();
            float textWidth = (float)font.getStringBounds(st, frc).getWidth();
            LineMetrics lm = font.getLineMetrics(st, frc);
            float sp = (float)(p - textWidth/2);
            float sq = (float)(q + lm.getAscent()/2);
            g2.drawString(st, sp, sq);
            p = cp + (pie/2 + 4*PAD/5) * Math.cos(theta + phi/2);
            q = cq + (pie/2 + 4*PAD/5) * Math.sin(theta+ phi/2);
            st = numberFormat.format(marks[j]/total);
            textWidth = (float)font.getStringBounds(st, frc).getWidth();
            lm = font.getLineMetrics(st, frc);
            sp = (float)(p - textWidth/2);
            sq = (float)(q + lm.getAscent()/2);
            g2.drawString(st, sp, sq);
            theta += phi;
        }
        g2.dispose();
    }
 public void toggleVisibility()
    {
        repaint();
    }

    private void repaint() {
    }
}



package Visibility extends MouseAdapter
{
    PieChartPanel piechart;
public Visibility(PieChartPanel pc)
    {
        piechart = pc;
    }
 public void mousePressed(MouseEvent event)
    {
        if(event.getClickCount() > 1)
            piechart.toggleVisibility();
    }

    private static class MouseEvent {

        public MouseEvent() {
        }
    }
}



package extendedapplet1;

import java.io.IOException;
import java.io.PrintWriter;

import javacard.framework.*;
import javacardx.framework.JCSystem;
/**
 *
 * @author Peachy
 */

/** set as enum
 * 
public PieChart2 extends Applet {

    /**
     * Installs this applet.
     * 
     * @param bArray
     *            the array containing installation parameters
     * @param bOffset
     *            the starting offset in bArray
     * @param bLength
     *            the length in bytes of the parameter data in bArray
     */

 
    public static void install(byte[] bArray, short bOffset, byte bLength) {
        new PieChart2(); }

    /**
     * Only this class install method should create the applet object.
     */

// set as enum

protected PieChart2() {
  *register*();
}

    /**
     * Processes an incoming APDU.
     * 
     * @see APDU
     * @param apdu
     *            the incoming APDU
     */

// set as enum
  
    @Override
    public void process(APDU apdu) {
        //Insert your code here
    }
}

Error message:

ant -f C:\\Users\\Peachy\\Documents\\NetBeansProjects\\PieChart2 run
__reset_for_debug__:
init-platform-properties:
Using JavaCard Platform Definition at C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\Services\Platforms\org-netbeans-api-java-Platform\javacard_default.jcplatform
Java Card Home is C:\Program Files (x86)\NetBeans 7.2\javacard\JCDK3.0.2_ConnectedEdition (Java Card Platform)
init-ri-properties:
init-device-properties:
Platform device property name is jcplatform.javacard_default.devicespath
Computed device folder path is C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\org-netbeans-modules-javacard\servers\javacard_default
Platform device file path property name is C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\org-netbeans-modules-javacard\servers\javacard_default\Default Device.jcard
Deploying to device Default Device http port 8019
init-keystore:
Keystore is C:\Program Files (x86)\NetBeans 7.2\javacard\JCDK3.0.2_ConnectedEdition/samples/keystore/a.keystore
build-dependencies:
unpack-dependencies:
compile:
Compiling 12 source files to C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\build\APPLET-INF\classes
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:169: error: class, interface, or enum expected
    public static void install(byte[] bArray, short bOffset, byte bLength) {
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:170: error: class, interface, or enum expected
        new PieChart2(); }
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:180: error: class, interface, or enum expected
}
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:193: error: class, interface, or enum expected
    public void process(APDU apdu) {
4 errors
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\nbproject\build-impl.xml:273: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

I now have this code down to four errors from the five that I originally posted. Here are the current errors.

ant -f C:\\Users\\Peachy\\Documents\\NetBeansProjects\\PieChart2 build
init-platform-properties:
Using JavaCard Platform Definition at C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\Services\Platforms\org-netbeans-api-java-Platform\javacard_default.jcplatform
Java Card Home is C:\Program Files (x86)\NetBeans 7.2\javacard\JCDK3.0.2_ConnectedEdition (Java Card Platform)
init-ri-properties:
init-device-properties:
Platform device property name is jcplatform.javacard_default.devicespath
Computed device folder path is C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\org-netbeans-modules-javacard\servers\javacard_default
Platform device file path property name is C:\Users\Peachy\AppData\Roaming\NetBeans\7.2\config\org-netbeans-modules-javacard\servers\javacard_default\Default Device.jcard
Deploying to device Default Device http port 8019
init-keystore:
Keystore is C:\Program Files (x86)\NetBeans 7.2\javacard\JCDK3.0.2_ConnectedEdition/samples/keystore/a.keystore
build-dependencies:
unpack-dependencies:
compile:
Compiling 12 source files to C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\build\APPLET-INF\classes
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:155: error: class, interface, or enum expected
public PieChart2 extends Applet {
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:170: error: class, interface, or enum expected
    public static void install(byte[] bArray, short bOffset, byte bLength) {
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:180: error: class, interface, or enum expected
protected PieChart2(){
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\src\extendedapplet1\PieChart2.java:195: error: class, interface, or enum expected
    public void process(APDU apdu){
4 errors
C:\Users\Peachy\Documents\NetBeansProjects\PieChart2\nbproject\build-impl.xml:273: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

Can you explain this a little better I don't understand what you are trying to tell me to do.

I am in an online class and trying to figure this stuff out on my own without an instructor's help. I have no one that I can turn to for help so I am trying to ask for help on here. I don't want you to give my the answer just help me figure out what I am doing wrong.

If I send you the assignment that I am working do you think you might be able to suggest something to help me?
Here is my assignment requirements:
Create a GUI-based program to accept name of donor, name of charity, and amount of pledge from the user.
Display a list of entries in a JTextArea or JTable.
Submit the .java source file for this program.