Messages posted by: Mixmaster

not sure if this goes here... sorry if I misplace this.

Ok, I have a program we're writing in class... it is a brick-breaker game (you have a few rows of bricks, a paddle, and a ball that bounces around breaking the bricks).

There is a lot of stuff I have left to do on it, and only a short time left to work on it.

SO, I wanted to take it home.

When I put it on my computer at home though, everything compiles fine, and I get no errors when I run it... and yet, it only shows up as a white box like this:

Now, the Imports we're using are from a .zip file we were given called "acm"... To run the program in school, we had to go to "SETTINGS ------> PATH / CLASSPATH -------> WORKSPACE --------->CLASSPATHS (tab) -----------> NEW -----------------> BROWSE..." and then find the acm.zip file. Once we did that, it was good to go.

My teacher let me take everything related to the program home with me to work on here.

I did all the above, and I still get the blank applet (I'm using the EXACT same program from school, the EXACT same program thing to write the program [JGRASP] on the same version as at school, and I have the EXACT same items, files, etc... as at school).

Is there anything else I need to do to get this to work?

what goes in the init(), start(), stop(), and destroy() methods?

what is the difference between and ?

lets say I have this simple code:

import javax.swing.*;
   import java.awt.*;
   import java.awt.event.*;
    public class Sample extends JPanel
   {
   	
   	//DRIVER
       public static void main(String[] args)
      {
         JFrame window = new JFrame();
         window.setTitle("Sample");
         window.setSize(300,100);
         window.setLocation(1,1);
         window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         window.setContentPane(new Sample());
         window.show();
      }
      private JButton button;
      private JLabel label;
   	
       public Sample()
      {
         setLayout(new FlowLayout());
      	
         button = new JButton("click me");
         button.addActionListener(new Listener());
         add(button);
      	
         label = new JLabel();
         add(label);
      }
   	
       private class Listener implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
            if(e.getSource() == button)
            {
               label.setText("you clicked the button");
            }
         }
      }
   }

what, from this code, goes in the above mentioned methods to get this to run as an applet?

not sure about this, but to me it looks like this:

if your investment has been in less than a year, it has no interest... so it returns your investment amount.

otherwise, it takes the interest rate, multiplies it by the investment, and gives you your investment amount with the interest rate.

the years -1, I don't know. I think that has something to do with the interest rate. maybe interest doesn't start until after the first year, so it subtracts a year.

just my interpretation, may very well be totally wrong.

stdunbar wrote:Your app is very close - some different inheritance will be the key. Take a look at the applet tutorial for more details.

Thank you.
I've looked there multiple times as well as other tutorial/help sites.

They all say the same thing, and I try what they say... but I think I'm missing something.

I change the to

Other than that, I don't really know what the tutorials are saying.

I know that the init() method replaces the main, and it probably requires a start() , stop() , and destroy() ... but I don't know how to write those.

May you please help with that part?

many thanks.

Ok, I have the following codes.

How do I make them into Applets so that I can put them on the Internet?

This makes a simple game (yes, VERY simple...still learning)

import javax.swing.*;
   import java.awt.*;
   import java.awt.event.*;
    public class Panel06 extends JPanel
   {
   	
   	//DRIVER
       public static void main(String[] args)
      {
         JFrame window = new JFrame();
         window.setTitle("Panel06");
         window.setSize(500,1000);
         window.setLocation(1,1);
         window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         window.setContentPane(new Panel06());
         window.show();
      }
   	
   	//declares everything used in the program
      private Dice dice;
      private Dice dice2;
      private JLabel label;
      private JLabel winnerLabel;
      private JLabel winnerLabel2;
      private JLabel spaceLabel;
      private JLabel spaceLabel2;
      private JLabel recordLabel1;
      private JLabel recordLabel2;
      private JLabel recordLabel3;
      private JLabel recordLabel4;
      private JLabel betLabel1;
      private JLabel betLabel2;
      private JButton button;
      private JButton button2;
      private JButton button3;
      private JButton button4;
      private JButton bet1;
      private JButton bet2;
      private int total = 0;
      private int total2 = 0;
      private int amount = 500;
      private int bet = 0;
      private JPanel panel1;
      private JPanel panel2;
      private int count;
      private int count2;
      private int count3;
      private int count4;
      private JLabel nameLabel;
      private JLabel gameLabel;
   	
       public Panel06()
      {
         setLayout(new GridLayout(8,2));
         setBackground(Color.black);
      	
      	//name
         nameLabel = new JLabel("");
         nameLabel.setIcon(new ImageIcon("mike.gif"));
         add(nameLabel);
      	
      	//game name
         gameLabel = new JLabel("");
         gameLabel.setIcon(new ImageIcon("craps.gif"));
         add(gameLabel);
      	
      	//amount you have
         betLabel1 = new JLabel("You have $" + amount);
         betLabel1.setFont(new Font("Serif",Font.BOLD,20));
         betLabel1.setForeground(Color.green);
         add(betLabel1);
      	
      	//amount you bet
         betLabel2 = new JLabel("You Bet $");
         betLabel2.setFont(new Font("Serif",Font.BOLD,20));
         betLabel2.setForeground(Color.green);
         add(betLabel2);
      	
      	//bet button to bet $5
         bet1 = new JButton("BET $5");
         bet1.addActionListener(new Listener5());
         bet1.setBackground(Color.black);
         bet1.setForeground(Color.green);
         add(bet1);
      	
      	//bet button to bet $10
         bet2 = new JButton("BET $10");
         bet2.addActionListener(new Listener5());
         bet2.setBackground(Color.black);
         bet2.setForeground(Color.green);
         add(bet2);
      	
      	//sets up the first set of dice
         dice = new Dice();
         dice.setBackground(Color.black);
         add(dice);
      	
      	//creates button to roll first set of dice
         button = new JButton("Roll");
         button.setIcon(new ImageIcon("dice.jpg"));
         button.addActionListener(new Listener());
         add(button);
      	
      	//tells if you win or lose with the first set of dice
         winnerLabel = new JLabel("");
         winnerLabel.setFont(new Font("Monotype Corsiva",Font.BOLD,35));
         winnerLabel.setForeground(Color.red);
         add(winnerLabel);
         
      	//creates panel that contains the record of wins - losses
         panel1 = new JPanel();
         setLayout(new GridLayout(0,2));
         panel1.setBackground(Color.black);
         add(panel1);
      	
         //wins
         recordLabel1 = new JLabel("First Roll Wins");
         recordLabel1.setFont(new Font("Tubular",Font.PLAIN,20));
         recordLabel1.setForeground(Color.yellow);
         panel1.add(recordLabel1);
         
         //helps keep orderly layout
         spaceLabel = new JLabel("");
         panel1.add(spaceLabel);
         
         //losses
         recordLabel2 = new JLabel("First Roll Losses");
         recordLabel2.setFont(new Font("Tubular",Font.PLAIN,20));
         recordLabel2.setForeground(Color.yellow);
         panel1.add(recordLabel2);
         
      	//sets up the second set of dice
         dice2 = new Dice();
         dice2.setBackground(Color.black);
         add(dice2);
      	
      	//creates button to roll second set of dice
         button2 = new JButton("Roll Again");
         button2.setIcon(new ImageIcon("dice1.jpg"));
         button2.addActionListener(new Listener2());
         button2.setEnabled(false);
         add(button2);
      	
      	//tells you if you win or lose with second set of dice
         winnerLabel2 = new JLabel("");
         winnerLabel2.setFont(new Font("Monotype Corsiva",Font.BOLD,35));
         winnerLabel2.setForeground(Color.red);
         add(winnerLabel2);
         
      	//creates panel that contains the record of wins - losses
         panel2 = new JPanel();
         setLayout(new GridLayout(0,2));
         panel2.setBackground(Color.black);
         add(panel2);
      	
         //wins
         recordLabel3 = new JLabel("Other Roll Wins");
         recordLabel3.setFont(new Font("Tubular",Font.PLAIN,20));
         recordLabel3.setForeground(Color.yellow);
         panel2.add(recordLabel3);
         
         //helps keep orderly layout
         spaceLabel2 = new JLabel("");
         panel2.add(spaceLabel2);
         
         //losses
         recordLabel4 = new JLabel("Other Roll Losses");
         recordLabel4.setFont(new Font("Tubular",Font.PLAIN,20));
         recordLabel4.setForeground(Color.yellow);
         panel2.add(recordLabel4);
         
      	//quit button
         button4 = new JButton("QUIT");
         button4.setIcon(new ImageIcon("exit.jpg"));
         button4.addActionListener(new Listener4());
         button4.setEnabled(true);
         add(button4);
         
      	//Play again button
         button3 = new JButton("PLAY AGAIN");
         button3.setIcon(new ImageIcon("untitled.jpg"));
         button3.addActionListener(new Listener3());
         button3.setEnabled(false);
         add(button3);
      }
    
     	//listener for bet buttons
       private class Listener5 implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
         	//bet button to bet $5
            if(e.getSource() == bet1)
            {
               bet = bet + 5;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $" + bet);
            }
            
            //bet button to bet $10
            else if(e.getSource() == bet2)
            {
               bet = bet + 10;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $" + bet);
            }  
         }
      }  
   	
   	//listener for fist roll button
       private class Listener implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
            total = dice.roll();
            
         	//if you roll a 7 or a 11 on your first roll, you automatically win
            if(total == 7 || total == 11)
            {
               winnerLabel.setText("WINNER!!");
               count++;
               recordLabel1.setText("First Roll Wins: " + count);
               button.setEnabled(false);
               button3.setEnabled(true);
               bet1.setEnabled(false);
               bet2.setEnabled(false);
               amount = amount + bet;
               bet = 0;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $");
               //WINNER!
               if(amount >= 2000)
               {
                  winnerLabel.setText("WINNER!!");
                  winnerLabel2.setText("WINNER!!");
                  recordLabel1.setText("WINNER!!");
                  recordLabel2.setText("WINNER!!");
                  recordLabel3.setText("WINNER!!");
                  recordLabel4.setText("WINNER!!");
                  betLabel1.setText("Bank ran out of money. You ");
                  betLabel2.setText("WIN!!");
               }
            }
            
            //if you roll a 2, 3, or 12 on your first roll, you automatically lose
            else if(total == 2 || total == 3 || total == 12)
            {
               winnerLabel.setText("LOSER!! ");
               count2++;
               recordLabel2.setText("First Roll Losses: " + count2);
               button.setEnabled(false);
               button3.setEnabled(true);
               bet1.setEnabled(false);
               bet2.setEnabled(false);
               amount = amount - bet;
               bet = 0;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $");
               //LOSER!
               if(bet >= amount)
               {
                  winnerLabel.setText("LOSER!! ");
                  winnerLabel2.setText("LOSER!! ");
                  recordLabel1.setText("LOSER!! ");
                  recordLabel2.setText("LOSER!! ");
                  recordLabel3.setText("LOSER!! ");
                  recordLabel4.setText("LOSER!! ");
                  betLabel1.setText("LOSER!! ");
                  betLabel2.setText("LOSER!! ");
               }
            }
            
            //if you roll anything not mentioned above, you must then roll the second
            //pair of dice
            else if(total == 4 || total == 5 || total == 6 || total == 8 ||
            			total == 9 || total == 10 || total == 11)
            {
               winnerLabel.setText("You rolled a " + total);
               button2.setEnabled(true);
               button.setEnabled(false);
               amount = amount;
               betLabel1.setText("You have $" + amount);
            }
            
            //resets label
            else
            {
               winnerLabel.setText("");
            }
         }
      }
      
   	//listener for roll again button
       private class Listener2 implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {    
            total2 = dice2.roll();
            
         	//if the total of the second pair of dice equals the roll of
         	//the first pair, you win   
            if(total2 == total)
            {
               winnerLabel2.setText("WINNER!!");
               count3++;
               recordLabel3.setText("Other Roll Wins: " + count3);
               button2.setEnabled(false);
               button.setEnabled(false);
               button3.setEnabled(true);
               bet1.setEnabled(false);
               bet2.setEnabled(false);
               amount = amount + bet;
               bet = 0;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $");
               //WINNER!
               if(amount >= 2000)
               {
                  winnerLabel.setText("WINNER!!");
                  winnerLabel2.setText("WINNER!!");
                  recordLabel1.setText("WINNER!!");
                  recordLabel2.setText("WINNER!!");
                  recordLabel3.setText("WINNER!!");
                  recordLabel4.setText("WINNER!!");
                  betLabel1.setText("Bank ran out of money. You ");
                  betLabel2.setText("WIN!!");
               }
            }
            
            //if you roll a 7 with the second pair of dice, you lose
            else if(total2 == 7)
            {
               winnerLabel2.setText("LOSER!! ");
               count4++;
               recordLabel4.setText("Other Roll Losses: " + count4);
               button2.setEnabled(false);
               button.setEnabled(false);
               button3.setEnabled(true);
               bet1.setEnabled(false);
               bet2.setEnabled(false);
               amount = amount - bet;
               betLabel1.setText("You have $" + amount);
               betLabel2.setText("You bet $");
               //LOSER!
               if(bet >= amount)
               {
                  winnerLabel.setText("LOSER!! ");
                  winnerLabel2.setText("LOSER!! ");
                  recordLabel1.setText("LOSER!! ");
                  recordLabel2.setText("LOSER!! ");
                  recordLabel3.setText("LOSER!! ");
                  recordLabel4.setText("LOSER!! ");
                  betLabel1.setText("LOSER!! ");
                  betLabel2.setText("LOSER!! ");
               }
               bet = 0;
            }
            
            //resets label
            else
            {
               winnerLabel2.setText("");
            }
         }
      }
      
   	//listener for play again button
       private class Listener3 implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
         	//sets up play again button (resets game board)
            if(e.getSource() == button3)
            {
            	//resets labels
               winnerLabel.setText("");
               winnerLabel2.setText("");
               recordLabel1.setText("First Roll Wins ");
               recordLabel2.setText("First Roll Losses ");
               recordLabel3.setText("Other Roll Wins ");
               recordLabel4.setText("Other Roll Losses ");
            	
            	//resets buttons
               button3.setEnabled(false);
               button.setEnabled(true);
               bet1.setEnabled(true);
               bet2.setEnabled(true);
               //resets bets
               if(amount <= 0 || amount >= 2000)
               {
                  amount = 500;
                  betLabel1.setText("You have $" + amount);
                  betLabel2.setText("You bet $");
               }
            }
         }
      }
      
      //listener for exit button
       private class Listener4 implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
         	//sets up the quit button
            System.exit(1);
         }
      }
   }

This is the Dice class needed in above program

import javax.swing.*;
   import java.awt.*;
    public class Dice extends JPanel
   {
      private JLabel label1, label2;
       public Dice()
      {
         setLayout(new GridLayout(1, 2, 5, 5));
      
         label1 = new JLabel();
         label1.setIcon(new ImageIcon("1.jpg"));
         add(label1);
      
         label2 = new JLabel();
         label2.setIcon(new ImageIcon("1.jpg"));
         add(label2);
      }
       public int roll()
      {
         int a = rollOne(label1);
         int b = rollOne(label2);
         return a + b;
      }
      
       private int rollOne(JLabel label)
      {
         int value =(int)(Math.random()*6) + 1;
         switch(value)
         {
            case 1: label.setIcon(new ImageIcon("1.jpg"));
               break;
            case 2: label.setIcon(new ImageIcon("2.jpg"));
               break;
            case 3: label.setIcon(new ImageIcon("3.jpg"));
               break;
            case 4: label.setIcon(new ImageIcon("4.jpg"));
               break;
            case 5: label.setIcon(new ImageIcon("5.jpg"));
               break;
            case 6: label.setIcon(new ImageIcon("6.jpg"));
               break;
         }
         return value;
      }
   }

I can compile and run all the code above in JGRASP, which is what I use.