Applet abends!!!

Question

I am completely new to applets! There are absolutely no errors shown, but the game abends every time I try to determine whether or not the user wins or loses. This is the main mehtod and the two constructors:
// User is asked to guess which of the two face down cards has
// the greatest value. The face value is the only thing used to
// determine the value of the cards. When the user selects a card,
// the fronts of the cards are shown, and the result of the game is
// displayed. The user is aksed if he or she wishes to play again.
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Exercise4 extends Applet implements MouseListener
DeckOfCards deck;
Card card1, card2, drawnCard1, drawnCard2;
String result, message, programmerName = "2";
Font bigFont;
Image cardpics; by-60
public void init()
setBackground( Color.cyan );
setSize (320,250);
addMouseListener(this);
cardpics = getImage(getCodeBase(), "cards.gif");
bigFont = new Font("Serif", Font.BOLD, 14);
deck = new DeckOfCards();
deal();
// Start the game by dealing two cards and repainting the applet.
void deal()
card1 = card2 = drawnCard1 = drawnCard2 = null;
message = "Which Card is Higher?";
result = "";
deck.shuffle();
deck.deal();
repaint();
// Because the applet is registered to listen for mouse clicks on
// itself, the system will call this method when the user presses
// the mouse on the applet. In this case, the method checks whether
// the user clicked on one of the cards or on the message at the
// bottom of the screen. If the user clicked card N, this method
// calls clickedCard(N). If the user clicked on the message, this
// method calls clickedMessage().
public void mousePressed(MouseEvent evt)
int x = evt.getX(); // convenient name for x-coord of mouse
int y = evt.getY(); // convenient name for y-coord of mouse
if ( y > 20 && y < 80 )
if (x > 100 && x < 140)
clickedCard(1);
else if (x > 160 && x < 200)
clickedCard(2);
else
if (x > 33 && x > 25)
deal();
// This method is called (by the mousePressed() method given below)
// when the user clicks on one of the cards. The parameter, cardNum,
// tells which card was clicked. String result is set to the appropriate
// message telling the outcome of the game.
void clickedCard(int cardNum)
     cardNum = card1.getValue();
     if (card1.getValue() > card2.getValue())
     message = "You win!";
     else if (card1.getValue() < card2.getValue())
               message = "Too Bad - You Lose";
     else if (card1.getValue() == card2.getValue())
          message = "A Draw";
     drawnCard1 = card1;
     drawnCard2 = card2;
message = "Play Again?";
repaint();
// The paint method is called by the system when the applet needs
// to be repainted. In this applet, it draws the two cards
// and the messages at the bottom of the applet.
public void paint(Graphics g)
int width = getSize().width;
int height = getSize().height;
FontMetrics fm = getFontMetrics(bigFont);
int w;
g.setColor(Color.blue);
g.drawRect(0,0,width-1,height-1);
g.setColor(Color.pink); background.
g.fillRect(33, 105, 250, 25);
g.setColor(Color.blue);
g.drawRect(33, 105, 250, 25);
g.setFont( bigFont );
w = fm.stringWidth(message);
g.drawString( message, 86, 122);
g.setColor(Color.pink);
g.fillRect(33, 155, 250, 25);
g.setColor(Color.blue);
g.drawRect(33, 155, 250, 25);
g.setFont( bigFont );
w = fm.stringWidth(result);
g.drawString( result, 20, 30);
g.setColor(Color.pink);
g.fillRect(33, 205, 250, 25);
g.setColor(Color.blue);
g.drawRect(33, 205, 250, 25);
g.setFont( bigFont );
w = fm.stringWidth(programmerName);
g.drawString( programmerName, 65, 222);
drawCard( g, drawnCard1, 100, 20 ); // Draw the two cards.
drawCard( g, drawnCard2, 160, 20 ); // If drawnCard1 or drawnCard2 are null,
// the cards will be drawn face down.
// Draws a card as a 40 by 60 rectangle with
// upper left corner at (x,y). The card is drawn
// in the graphics context g. If card is null, then
// a face-down card is drawn.
void drawCard(Graphics g, Card card, int x, int y)
if (card == null)
// Draw a face-down card
g.setColor(Color.blue);
g.fillRect(x,y,40,60);
g.setColor(Color.white);
g.drawRect(x+3,y+3,33,53);
g.drawRect(x+4,y+4,31,51);
else
int row = 0;
switch (card.getSuit())
case 0: row = 0; break;
case 1: row = 1; break;
case 2: row = 2; break;
case 3: row = 3; break;
int sx, sy; // coords of upper left corner in the source image.
sx = 40*(card.getValue() - 1);
sy = 60*row;
g.drawImage(cardpics, x, y, x+40, y+60,
sx, sy, sx+40, sy+60, this);
// Other mouse routines required by the MouseListener interface.
// They are not used in this applet
public void mouseClicked(MouseEvent evt) { }
public void mouseReleased(MouseEvent evt) { }
public void mouseEntered(MouseEvent evt) { }
public void mouseExited(MouseEvent evt) { }
// DeckOfCards.java
import java.util.Random;
public class DeckOfCards
private int count;
private boolean[] deck = new boolean[53];
Random generator = new Random();
public DeckOfCards()
shuffle();
public void shuffle()
for (int i = 1; i <= 52; i++)
deck[i] = false;
count = 0;
public Card deal()
int num, suit;
if (count > 51)
num = -1;
suit = -1;
else
do
num = generator.nextInt(13) + 1;
suit = generator.nextInt(4);
while (deck[num+suit*13] == true);
deck[num+suit*13] = true;
count++;
return new Card(num,suit);
public int cardsInDeck()
return (52 - count);
// Card.java
public class Card
private int num, suit;
public Card (int num, int suit)
this.num = num;
this.suit = suit;
public int getValue ()
return num;
public int getSuit ()
return suit;
public String toString()
String result = "message";
switch (num)
case -1: result = " No Card"; break;
case 1: result = " Ace "; break;
case 2: result = " 2 "; break;
case 3: result = " 3 "; break;
case 4: result = " 4 "; break;
case 5: result = " 5 "; break;
case 6: result = " 6 "; break;
case 7: result = " 7 "; break;
case 8: result = " 8 "; break;
case 9: result = " 9 "; break;
case 10: result = " 10 "; break;
case 11: result = " Jack "; break;
case 12: result = " Queen"; break;
case 13: result = " King "; break;
switch (suit)
case -1: break;
case 0: result = result + " of Clubs"; break;
case 1: result = result + " of Hearts"; break;
case 2: result = result + " of Spades"; break;
case 3: result = result + " of Diamonds"; break;
return result;
}

Answer 1

"Abends"? What does that mean?
Anyway, try writing a smallest possible applet that exhibits the behavior you're seeing. That'll be easier to debug. If you can't debug it yourself, then ask again here. Ask about the smallest possible applet, though; you'll tend to scare people away with long programs posted here. When you post code, always wrap it in [code][/code] tags so it's legible; ugly unformatted code will also scare people away.