Cannot resolve symbol: method getCodeBase ()

Question

I`m creating a dice game that makes a sound when player wins or looses. Instaed I`m getting the following error message: Cannot resolve symbol: method getCodeBase (). I think this depends on the fact that I have a separate applet launcher but cannot figure out how to solve this, please help!!
This is the applet launcher
import javax.swing.*;
import java.awt.*;
// [MC] Public class DiceApplet
public class DiceApplet extends JApplet
     // [MC] Constructor.
     public DiceApplet()
          // [MC] Sets the contentPane property. This method is called by the constructor.
          this.setContentPane(new DicePanel());
This is the die class
import java.awt.*;
import javax.swing.*;
// [MC] Public class Die
public class Die extends JPanel
    // ======================================================================
    // [MC] Instance variable.
    private int myFaceValue;     // [MC] Value that shows on face of die.
    // [MC] End instance variable.
    // ======================================================================
    // [MC] Constructor.
    // [MC] Initialises die to blue background and initial roll.
    public Die()
          // [MC] Sets the background colour of the die to blue.
          setBackground(Color.blue);
          // [MC] Sets the foreground colour of the die to gray.
          setForeground(Color.gray);
          // [MC] Sets the border colour of the die to white.
          setBorder(BorderFactory.createMatteBorder(4, 4, 4, 4, Color.white));
          // [MC] Sets to random initial value.
          roll();
     }     // [MC] End constructor.
    // ======================================================================
    // [MC] Method roll.
    // [MC] Produces random roll in the range of 1 to 6.
    public int roll()
        int val = (int)(6*Math.random() + 1);   // [MC] Range from 1 to 6.
        setValue(val);
        return val;     // [MC] Returns a value from 1 to 6.
    }     // [MC] End method roll.
    // [MC] Method setValue
    // [MC] Sets the value of the die. Causes repaint.
    public void setValue(int dots)
        myFaceValue = dots;
        repaint();    // [MC] Value has changed, must repaint.
    } // [MC] End method setValue.
    // ======================================================================
    // [MC] Method getValue.
    // [MC] Returns result of last roll.
    public int getValue()
        return myFaceValue;
    } // [MC] End method getValue.
    // ======================================================================
    // [MC] Method paintComponent.
    // [MC] Draws dots of die face.
    public void paintComponent(Graphics g)
          // [MC] Call superclass's paint method.
        super.paintComponent(g);
          // [MC] Sets panel width.
        int w = getWidth();
        // [MC] Sets panel height.
        int h = getHeight();
          // [MC] Draws border.
        g.drawRect(0, 0, w-1, h-1);
        // Switch
        switch (myFaceValue)
            case 1: drawDot(g, w/2, h/2);
                    break;
            case 3: drawDot(g, w/2, h/2);
            case 2: drawDot(g, w/4, h/4);
                    drawDot(g, 3*w/4, 3*h/4);
                    break;
            case 5: drawDot(g, w/2, h/2);
            case 4: drawDot(g, w/4, h/4);
                    drawDot(g, 3*w/4, 3*h/4);
                    drawDot(g, 3*w/4, h/4);
                    drawDot(g, w/4, 3*h/4);
                    break;
            case 6: drawDot(g, w/4, h/4);
                    drawDot(g, 3*w/4, 3*h/4);
                    drawDot(g, 3*w/4, h/4);
                    drawDot(g, w/4, 3*h/4);
                    drawDot(g, w/4, h/2);
                    drawDot(g, 3*w/4, h/2);
                    break;
        } // [MC] End switch.
    }     // [MC] End method paintComponent.
    // [MC] Method drawDot.
    /** Utility method used by paintComponent(). */
    private void drawDot(Graphics g, int x, int y)
        // [MC] Gets panel width.
          int w = getWidth();
          // [MC] Gets panel height.
          int h = getHeight();
          // [MC] Local variable.
        int d;
        // [MC] Sets diameter of dot proportional to panel size.
        d = (w + h)/10;
          // [MC] Sets colour for dot to white.
          Color myDotColor = new Color(255, 255, 255);
          g.setColor(myDotColor);
         // [MC] Draws dot.
         g.fillOval(x-d/2, y-d/2, d, d);
    } // [MC] End method drawDot.
This is the class giving the error message
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.applet.AudioClip;
import java.applet.Applet;
import java.net.*;
// [MC] Public class DicePanel
public class DicePanel extends JPanel
    // ======================================================================
    // [MC] Instance variables.
    // [MC] Creates new instances of the component for the die.
    private Die myLeftDie;     // [MC] Component for left die.
    private Die myRightDie;     // [MC] Component for right die.
     // [MC] Creates the button (rollButton) to roll the dice.
     private     JButton rollButton = new JButton("Roll Dice");
     // [MC] Creates the text fields. Creates new instance of JTextField.
     // [MC] Creates the text field (rollNumberTextField) to display number of rolls.
     private JTextField rollNumberTextField = new JTextField(20);
     // [MC] Creates the text field (rollResultTextField) to display result of roll.
     private JTextField rollResultTextField = new JTextField(20);
     // [MC] Creates the text field (rollPointsTextField) to display the player`s points.
     private JTextField rollPointsTextField = new JTextField(20);
     // [MC] Creates the text field (gameFinalResultTextField) to display the final game result.
     private JTextField gameFinalResultTextField = new JTextField(20);
    // [MC] Initialises instance variables declared in the inner listeners.
    private int result = 0, resultLeft = 0, resultRight = 0;
     private int rolls = 0;
     private int finalResult = 0;
     private int points = 0;
     private boolean first = true;
     private AudioClip winClip = null;
     private AudioClip looseClip = null;
    // ======================================================================
    // [MC] Constructor. Creates border layout panel.
    DicePanel()
        // [MC] Creates the dice
        myLeftDie  = new Die();
        myRightDie = new Die();
    // ======================================================================
          // [MC] Creates the buttons.
          // [MC] Creates the button (newGameButton) to start new game.
        JButton newGameButton = new JButton("New Game");
          // *[MC] Creates the button (rollButton) to roll the dice.
        // *JButton rollButton = new JButton("Roll Dice");
        // [MC] Sets the font of the buttons.
        // [MC[ Sets the font of the button newGameButton.
        newGameButton.setFont(new Font("Batang", Font.BOLD, 20));
        // [MC[ Sets the font of the button rollButton.
        rollButton.setFont(new Font("Batang", Font.BOLD, 20));
            // [MC] Sets the button border format.
          // [MC] Sets the button with compound borders.
        Border compound;
          // [MC] Border format local variables.
        Border blackline, raisedetched, loweredetched, raisedbevel, loweredbevel, empty;
          // [MC] Initialises border formats.
          //blackline = BorderFactory.createLineBorder(Color.gray);
          raisedetched = BorderFactory.createEtchedBorder(EtchedBorder.RAISED);
          loweredetched = BorderFactory.createEtchedBorder(EtchedBorder.LOWERED);
          raisedbevel = BorderFactory.createRaisedBevelBorder();
          //loweredbevel = BorderFactory.createLoweredBevelBorder();
          // [MC] Sets compound border format.
        compound = BorderFactory.createCompoundBorder(raisedetched, raisedbevel);
        // [MC] Sets the button (newGameButton) with compound border format.
        newGameButton.setBorder(compound);
        // [MC] Sets the button (rollButton) with compound border format.
          rollButton.setBorder(compound);
        // [MC] Adds listener.
        // [MC] Adds listener to rollButton.
        rollButton.addActionListener(new RollListener());
        // [MC] Adds listener to newGameButton.
        newGameButton.addActionListener(new NewGameListener());
    // ======================================================================
          // [MC] Creates the labels. Creates new instance of JLabel.
          // [MC] Creates the label (rollNumberLabel) for the number of rolls.
          JLabel rollNumberLabel = new JLabel("Roll Number");
          // [MC] Creates the label (rollResultLabel) for the result of roll.
          JLabel rollResultLabel = new JLabel("Roll Result");
          // [MC] Creates the label (rollPointsLabel) for the player`s points.
          JLabel rollPointsLabel = new JLabel("Player Points");
          // [MC] Creates the label (gameFinalResult) for the final game result.
          JLabel gameFinalResultLabel = new JLabel("Final Result");
          // [MC] Sets the label font.
          rollNumberLabel.setFont(new Font("Sansserif", Font.PLAIN, 10));
          rollResultLabel.setFont(new Font("Sansserif", Font.PLAIN, 10));
          rollPointsLabel.setFont(new Font("Sansserif", Font.PLAIN, 10));
          gameFinalResultLabel.setFont(new Font("Sansserif", Font.PLAIN, 10));
          // [MC] Sets the label title alignment.
          rollNumberLabel.setHorizontalAlignment(JLabel.CENTER);
          rollResultLabel.setHorizontalAlignment(JLabel.CENTER);
          rollPointsLabel.setHorizontalAlignment(JLabel.CENTER);
          gameFinalResultLabel.setHorizontalAlignment(JLabel.CENTER);
          // [MC] Sets the label border format.
          //rollNumberLabel.setBorder(loweredetched);
          //rollResultLabel.setBorder(loweredetched);
          //rollPointsLabel.setBorder(loweredetched);
          //gameFinalResultLabel.setBorder(loweredetched);
    // ======================================================================
          // [MC] Sets the text field font.
          rollNumberTextField.setFont(new Font("Sansserif", Font.PLAIN, 16));
          rollResultTextField.setFont(new Font("Sansserif", Font.PLAIN, 16));
          rollPointsTextField.setFont(new Font("Sansserif", Font.PLAIN, 16));
          gameFinalResultTextField.setFont(new Font("Sansserif", Font.BOLD, 16));
          // [MC] Sets the text field text alignment.
          rollNumberTextField.setHorizontalAlignment(JTextField.CENTER);
          rollResultTextField.setHorizontalAlignment(JTextField.CENTER);
          rollPointsTextField.setHorizontalAlignment(JTextField.CENTER);
          gameFinalResultTextField.setHorizontalAlignment(JTextField.CENTER);
          // [MC] Sets the text field text colour.
          gameFinalResultTextField.setForeground(Color.blue);
          // [MC] Sets the text field to not editable.
          rollNumberTextField.setEditable(false);
          rollResultTextField.setEditable(false);
          rollPointsTextField.setEditable(false);
          gameFinalResultTextField.setEditable(false);
    // ======================================================================
          // [MC] Gets sounds.
          winClip =  getAudioClip(getCodeBase(), "bunny1.au");
          looseClip =  getAudioClip(getCodeBase(), "bunny1.au");
    // ======================================================================
          // [MC] Sets the layout manager (GridBagLayout) for this container.
          this.setLayout(new GridBagLayout());
          // [MC] Creates new instance of GridBagConstraints.
          GridBagConstraints c = new GridBagConstraints();
          // [MC] Makes the component fill its display area entirely.
          c.fill = GridBagConstraints.BOTH;
          // [MC] Layouts components.
          // [MC] Adds the component newGameButton to this container.
          c.gridx = 0;     // [MC] Makes this component the leftmost column (column 1).
          c.gridy = 0;     // [MC] Makes this component the uppermost row (row 1).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 2;     // [MC] Specifies the number of columns the component uses (2 columns).
          this.add(newGameButton, c);     // [MC] Adds the button newGameButton.
          // [MC] Adds the component rollButton to this container.
          c.gridx = 2;     // [MC] Makes this component the third column from left (column 3).
          c.gridy = 0;     // [MC] Make this component the uppermost row (row 1).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 rows).
          c.gridwidth = 2;     // [MC] Specifies the number of columns the component uses (2 columns).
          this.add(rollButton, c);     // [MC] Adds the button rollButton.
          // [MC] Adds the component rollNumberLabel to this container.
          c.gridx = 0;     // [MC] Makes this component the leftmost column (column 1).
          c.gridy = 3;     // [MC] Makes this component the third row from top (row 3).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          c.weightx = 0.1;     // [MC] Requests any extra vertical (column) space.
          this.add(rollNumberLabel, c);     // [MC] Adds the label rollNumberLabel.
          // [MC] Adds the component rollResultLabel to this container.
          c.gridx = 1;     // [MC] Makes this component the second column from left (column 2).
          c.gridy = 3;     // [MC] Makes this component the third row from top (row 3).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(rollResultLabel, c);     // [MC] Adds the label rollResultLabel.
          // [MC] Adds the component rollPointsLabel to this container.
          c.gridx = 2;     // [MC] Makes this component the third column from left (column 3).
          c.gridy = 3;     // [MC] Makes this component the third row from top (row 3).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(rollPointsLabel, c);     // [MC] Adds the label rollPointsLabel.
          // [MC] Adds the component gameFinalResultLabel to this container.
          c.gridx = 3;     // [MC] Makes this component the fourth column from left (column 4).
          c.gridy = 3;     // [MC] Makes this component the third row from top (row 3).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(gameFinalResultLabel, c);     // [MC] Adds the label gameFinalResultLabel.
          // [MC] Adds the component rollNumberTextField to this container.
          c.gridx = 0;     // [MC] Makes this component the leftmost column (column 1).
          c.gridy = 4;     // [MC] Makes this component the fourth row from top (row 4).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          c.weightx = 0.1;     // [MC] Requests any extra vertical (column) space.
          this.add(rollNumberTextField, c);     // [MC] Adds the text field rollNumberTextField.
          // [MC] Adds the component rollResultTextField to this container.
          c.gridx = 1;     // [MC] Makes this component the second column from left (column 2).
          c.gridy = 4;     // [MC] Makes this component the fourth row from top (row 4).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(rollResultTextField, c);     // [MC] Adds the text field rollResultTextField.
          // [MC] Adds the component rollPointsTextField to this container.
          c.gridx = 2;     // [MC] Makes this component the third column from left (column 3).
          c.gridy = 4;     // [MC] Makes this component the fourth row from top (row 4).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(rollPointsTextField, c);     // [MC] Adds the text field rollPointsTextField.
          // [MC] Adds the component gameFinalResultTextField to this container.
          c.gridx = 3;     // [MC] Makes this component the fourth column from left (column 4).
          c.gridy = 4;     // [MC] Makes this component the fourth row from top (row 4).
          c.gridheight = 1;     // [MC] Specifies the number of rows the component uses (1 row).
          c.gridwidth = 1;     // [MC] Specifies the number of columns the component uses (1 column).
          this.add(gameFinalResultTextField, c);     // [MC] Adds the text field gameFinalResultTextField.
          // [MC] Adds the component myLeftDie to this container.
          c.gridx = 0;     // [MC] Makes this component the leftmost column (column 1).
          c.gridy = 1;     // [MC] Makes this component the second row from top (row 2).
          c.gridheight = 2;     // [MC] Specifies the number of rows the component uses (2 rows).
          c.gridwidth = 2;     // [MC] Specifies the number of columns the component uses (2 columns).
          c.weightx = 1.0;     // [MC] Requests any extra vertical (column) space.
          c.weighty = 1.0;     // [MC] Requests any extra horizontal (row) space.
          this.add(myLeftDie, c);     // [MC] Adds the component myLeftDie.
          // [MC] Adds the component myRightDie to this container.
          c.gridx = 2;     // [MC] Makes this component the third column from left (column 3).
          c.gridy = 1;     // [MC] Makes this component the second row from top (row 2).
          c.gridheight = 2;     // [MC] Specifies the number of rows the component uses (2 rows).
          c.gridwidth = 2;     // [MC] Specifies the number of columns the component uses (2 column).
          c.weightx = 1.0;     // [MC] Requests any extra column (vertical) space.
          c.weighty = 1.0;     // [MC] Requests any extra horizontal (row) space.
          this.add(myRightDie, c);     // [MC] Adds the component myRightDie.
    }     // [MC] end constructor
    // ======================================================================
    // [MC] Private class RollListener
    // [MC] Inner listener class for rollButton.
    private class RollListener implements ActionListener
        public void actionPerformed(ActionEvent e)
            // [MC] Rolls the dice.
            myLeftDie.roll();     // [MC] Rolls left die.
            myRightDie.roll();     // [MC] Rolls right die.
               finalResult = 0; // [MC] If result = 0 then game is not over.
               rolls++;     // [MC] Increments the number of rolls.
              // [MC] Displays the roll number.
                rollNumberTextField.setText(" " + rolls + " ");
               // [MC] Returns the result (number of dots) of last roll.
               resultLeft = myLeftDie.getValue();     // [MC] Returns the result of the left die.
               resultRight = myRightDie.getValue();     // [MC] Returns the result of the right die.
               result = resultLeft + resultRight;     // [MC] Returns the total result of dice.
               // [MC] Displays the result of last roll.
               rollResultTextField.setText(" " + result + " ");
               // [MC] Sets the rules for the game.
               // [MC] Sets the rules for the first roll of dice.
               if (first)
                   // [MC] If the result is 2, 3 or 12 on the first throw, the player loses.
                   if (result == 2 || result == 3 || result == 12)
                         finalResult = 2; // [MC] If result = 2 then the player loses and the game is over.
                         gameFinalResultTextField.setText("LOOSE");
                         Toolkit.getDefaultToolkit().beep();
                       rollButton.setEnabled(false);     // [MC] Disable rollButton.
                         first = true; // [MC] Game over after first roll.
                   // [MC] If the result is 7 or 11 on the first throw, the player wins.
                    else if (result == 7 || result == 11)
                         finalResult = 1; // [MC] If result = 1 then the player wins and the game is over.
                         gameFinalResultTextField.setText("WIN");
                         //Toolkit.getDefaultToolkit().beep();
                       rollButton.setEnabled(false);     // [MC] Disable rollButton.
                         first = true;     // [MC] Game over after first roll.
                    // [MC] If the player didn`t win or lose then the results 4, 5, 6, 8, 9 or 10 become the player`s point.
                    else if (result == 4 || result == 5 || result == 6 || result == 8 || result == 9 || result == 10);
                         // [MC] Returns the player`s points.
                         points = result;     // [MC] Returns the player`s points.
                         // [MC] Displays the player`s points.
                         rollPointsTextField.setText(" " + points + " ");
                         first = false;     // [MC] Game is not over after first roll.
               // [MC] Sets the rules for the next rolls (from second roll onwards) of the dice.
               // [MC] If the result is 7, then the player loses.
               else if (result == 7)
                    finalResult = 2;     // [MC] If result = 2 then the player loses and the game is over.
                    gameFinalResultTextField.setText("LOOSE");
                    Toolkit.getDefaultToolkit().beep();
                  rollButton.setEnabled(false);     // [MC] Disable rollButton.
               // [MC] If the result is equal to the player`s point, then the player wins.
               else if (result == points)
                    finalResult = 1;     // [MC] If result = 1 then the player wins and the game is over.
                    gameFinalResultTextField.setText("WIN");
                    winClip.play();
                    //Toolkit.getDefaultToolkit().beep();
                  rollButton.setEnabled(false);     // [MC] Disable rollButton.
          }     // [MC] End public void actionPerformed(ActionEvent e).
     }     // [MC] End private class RollListener.
    // ======================================================================
    // [MC] Private class NewGameListener
    // [MC] Inner listener class for newGameButton.
    private class NewGameListener implements ActionListener
          public void actionPerformed(ActionEvent e)
               // [MC] Initialises instance variables.
               first = true;     // [MC] Initialise dice roll to first roll.
               rolls = 0;     // [MC] Initialises number of rolls to 0.
               // [MC] Initialises text fields.
               rollResultTextField.setText("");
               rollNumberTextField.setText("");
               rollPointsTextField.setText("");
               gameFinalResultTextField.setText("");
               rollButton.setEnabled(true);     // [MC] Enable rollButton.
        } // [MC] End public void actionPerformed(ActionEvent e).
     }// [MC] End private class NewGameListener implements ActionListener.
} // [MC] End public class DicePanel extends JPanel.

Answer 1

make a backup copy before these changes
it now compiles, but I haven't run/tested it
changed constructor to init(), extending Applet, not JApplet
// [MC] Public class DiceApplet
public class DiceApplet extends Applet
  // [MC] Constructor.
  public void init()
    // [MC] Sets the contentPane property. This method is called by the constructor.
    add(new DicePanel());
}then the 'error lines' become
    winClip =  ((Applet)getParent()).getAudioClip(((Applet)getParent()).getCodeBase(), "bunny1.au");
    looseClip =  ((Applet)getParent()).getAudioClip(((Applet)getParent()).getCodeBase(), "bunny1.au");there might be additional problems when you run/test it, but this might get you started