Need alot of help

Question

I am creating a program so that games can be purchased, which was going well up until i added the add and remove code.
I get multiple compilation error messages from most of the files as they are working in conjunction with each other.
I have created a seperate file so that i can add games and save them in a .dat file so that they are avaliable to the main program which also does not compile successfully.
When the program starts the list of games for sale should automatically be filled from an input data file which must contain read and write list methods. therefore, i have created the following files Game.java, GameList.java and GameFileHandler.
Would anyone be able help? Any help would be grately appreciated.
I have included the files needed to run the program.
RunMobileGame
import java.awt.*;
public class RunMobileGame { // Begin Class
     public static void main (String[] args) { // Begin Main
          EasyFrame frame = new EasyFrame();
          frame.setTitle("Game Purchase for 3G Mobile Phone");
          MobileGame purchase = new MobileGame(frame); //need frame for dialog
          frame.setSize(500,300); // sets frame size
          frame.setBackground(Color.lightGray); // sets frame colour
          frame.add(purchase); // adds frame
          frame.setVisible(true); // makes the frame visible
     } // End Main
} // End Class
MobileGame
import java.awt.*;
import java.awt.event.*;
class MobileGame extends Panel implements ActionListener { // Begin Class
     The Buttons, Labels, TextFields, TextArea 
     and Panels will be created first.         
     private Panel topPanel = new Panel();
     private Panel middlePanel = new Panel();
     private Panel bottomPanel = new Panel();
     private Label saleLabel = new Label ("Java Games For Sale",Label.RIGHT);
     private TextArea saleArea = new TextArea(7, 25);
     private Button addButton = new Button("Add to Basket");
     private TextField add = new TextField(3);
     private Label currentLabel = new Label ("Current Basket",Label.RIGHT);
     private TextArea currentArea = new TextArea(3, 25);
     private Button removeButton = new Button("Remove from Basket");
     private TextField remove = new TextField(3);
     private Button purchaseButton = new Button("Purchase");
     private ObjectList gameList = new ObjectList(20);
     Frame parentFrame; //needed to associate with dialog
     All the above will be added to the interface 
     so that they are visible to the user.        
     public MobileGame (Frame frameIn) { // Begin Constructor
          parentFrame = frameIn;
          topPanel.add(saleLabel);
          topPanel.add(saleArea);
          topPanel.add(addButton);
          topPanel.add(add);
          middlePanel.add(currentLabel);
          middlePanel.add(currentArea);
          bottomPanel.add(removeButton);
          bottomPanel.add(remove);
          bottomPanel.add(purchaseButton);
          this.setLayout(new BorderLayout());
          add("North", topPanel);
          add("Center", middlePanel);
          add("South", bottomPanel);
          addButton.addActionListener(this);
          removeButton.addActionListener(this);
          purchaseButton.addActionListener(this);
          The following line of code below is 
          needed inorder for the games to be  
          loaded into the SaleArea            
          MobileGame aMobileGame;
          if (! GameFileHandler.readRecords(dataList)); { // Read records from data file
          } // End if
          for (int i=1; i <= dataList.getTotal(); i++) { // Begin for
               aMobileGame = (MobileGame) dataList.getObject(i);
               saleArea.append(i + " " + aMobileGame.getName()
                                                  + " " + aMobileGame.getText()
                                                  + " " + aMobileGame.getPrice()
                                                  + "\n");
          } // End for
     } // End Constructor
     All the operations which will be performed are  
     going to be written below. This includes the    
     Add, Remove and Purchase.                       
     public void actionPerformed (ActionEvent e) { // Begin actionPerformed
     If the Add to Basket Button is pressed, a       
     suitable message will appear to say if the game 
     was successfully added or not. If not, an       
     ErrorDialog box will appear stateing the error. 
          if(e.getSource() == addButton) { // Begin Add to Basket
          MobileGame aMobileGame;
               try { // Begin Try
                    if (dataList.isEmpty() ) { // some validation
                         new ErrorDialog(parentFrame,"No Games Avaliable to Add");
                    } else if (add.getText().length() == 0 ) {
                         new ErrorDialog (parentFrame,"Feild Blank");
                    } else if (Integer.parseInt(add.getText())<= 0
                              || Integer.parseInt(add.getText())> dataList.getTotal()) { // Begin Else If
                         new ErrorDialog (parentFrame,"Invalid Game Number");
                    } else { // Begin Else If
                         int i = Integer.parseInt(add.getText());
                         aMobileGame = (MobileGame) dataList.getObject(i);
                         currentArea.append(i + " " + aMobileGame.getName()
                                                  + " " + aMobileGame.getText()
                                                  + " " + aMobileGame.getPrice()
                                                  + "\n");
                    } // End Else
               } catch (NumberFormatException num) { // Begin Catch
                    new ErrorDialog(parentFrame,"Please enter an Integer only");
               } // End Catch
          } // End Add to Basket
     add.setText(""); // Clears any characters entered in the addFeild
     If the Remove From Basket Button is pressed, a  
     a suitable message will appear to say if the    
     removal was successful or not. If not, an       
     ErrorDialog box will appear stateing the error. 
          if(e.getSource() == removeButton) { // Begin Remove from Basket
               MobileGame aMobileGame;
               try { // Begin Try
                    if (dataList.isEmpty() ) { // some validation
                         new ErrorDialog(parentFrame,"No Games Avaliable to Remove");
                    } else if (remove.getText().length() == 0 ) {
                         new ErrorDialog (parentFrame,"Feild Blank");
                    } else if (Integer.parseInt(remove.getText())<= 0
                              || Integer.parseInt(remove.getText())>=21) { // Begin Else If
                         new ErrorDialog (parentFrame,"Game Number out of Range");
                    } else { // Begin Else If
                         int num = Integer.parseInt(remove.getText());
                         boolean ok = dataList.remove(num);
                         currentArea.setText(""); // Clear the textArea
                              for (int i = 1; i <= dataList.getTotal(); i++) { // Begin for
                                   aMobileGame = (MobileGame) dataList.getObject(i);
                                   currentArea.append(i + " " + aMobileGame.getName()
                                                  + " " + aMobileGame.getText()
                                                  + " " + aMobileGame.getPrice()
                                                  + "\n");
                              } // End for
                    } // End Else
               } catch (NumberFormatException num) { // Begin Catch
                    new ErrorDialog(parentFrame,"Please enter an Integer only");
               } // End Catch
          } // End Remove from Basket
     If the purchase button is pressed, the          
     following is executed. NOTE: nothing is done    
     when the ok button is pressed, the window       
     just closes.                                    
          if(e.getSource() == purchaseButton) { // Begin Purchase
               String gameEntered = currentArea.getText();
               if (gameEntered.length() == 0 ) {
                    new ErrorDialog (parentFrame,"Nothing to Purchase");
               } else { // Begin Else If
                    new CreditDialog(parentFrame,"Cost � 00.00. Please enter Credit Card Number");
               } // End Else               
          } // End Purchase
     } // End actionPerformed
} // End Class
ObjectList
class ObjectList
private Object[] object ;
private int total ;
public ObjectList(int sizeIn)
object = new Object[sizeIn];
total = 0;
public boolean add(Object objectIn)
if(!isFull())
object[total] = objectIn;
total++;
return true;
else
return false;
public boolean isEmpty()
if(total==0)
return true;
else
return false;
public boolean isFull()
if(total==object.length)
return true;
else
return false;
public Object getObject(int i)
return object[i-1];
public int getTotal()
return total;
public boolean remove(int numberIn)
// check that a valid index has been supplied
if(numberIn >= 1 && numberIn <= total)
{   // overwrite object by shifting following objects along
for(int i = numberIn-1; i <= total-2; i++)
object[i] = object[i+1];
total--; // Decrement total number of objects
return true;
else // remove was unsuccessful
return false;
GameList
import java.awt.*;
class GameList extends ObjectList { // Begin Class
     public Game getGame(int indexIn) { // call inherited method and type cast
          return (Game)getObject(indexIn);
     public GameList(int sizeIn) { // call ObjectList Constructor
          super(sizeIn);
     } // End ObjectList Constructor
     public Game search(int gameIn) { // Begin search
          for(int i=1;i<=getTotal();i++) { // find tenant with given room number
               if(getObject(i).getObject() == gameIn) { // Begin if
                    return getObject(i);
               } // End if
          } // End for
               return null; // no game found
     } // End Search
} // End Class
GameFileHandler
import java.awt.*;
import java.io.*;
class GameFileHandler { // Begin class
     public static void saveRecords(int noOfGamesIn, GameList listIn) {
          try { // Begin Try
               FileOutputStream gameFile = new FileOutputStream("dataList.dat");
               DataOutputStream gameWriter = new DataOutputStream(ListIn);
               gameWriter.writeInt(listIn.getTotal());
               for(int i=1; i <= noOfGamesIn; i++) { // Begin for
                    if(listIn.getGame(i) != null) { // Begin if
                         gameWriter.writeInt(i);
                         gameWriter.writeUTF(listIn.getObject(i).getName());
                         gameWriter.writeUTF(listIn.getObject(i).getText());
                         gameWriter.writeUTF(listIn.getObject(i).getPrice());
                         for(int i = 1; j<= listIn.getObject(i).getTotal(); i++) { // Begin for
                         } // End for
                    } // End if
               } // End for
               gameWriter.flush();
               gameWriter.close();
          } catch (IOException ioe) {
               System.out.println("Error writing file");
          } // End catch
     } // End Save
     public static void readRecords(GameList listIn) { // Begin read
          try { // Begin Try
               FileInputStream gameFile = new FileInputStream("Games.dat");
               DataInputStream gameReader = new DataInputStream(ListIn);
               int tempObject = 0;
               String tempName = new String("");
               String tempText = new String("");
               String tempPrice = new String("");
               double tempAmount = 0 ;
               Game tempGame = null;
               int tot = 0;
               int totpay = 0;
               tot = gameReader.readInt();
               for(int j = 1; j<=tot; j++) { // Begin for
                    tempObject = gameReader.readInt();
                    tempName = gameReader.readUTF();
                    tempText = gameReader.readUTF();
                    tempPrice = gameReader.readUTF();
                    tempGame = new Game(tempGameNo,tempGameName,tempGameQty,tempGamePrice);
                    totpay = gameReader.readInt();
                    listIn.add(tempGame);
                    } // End for
               gameReader.close();
          } catch(IOException ioe) { // Begin Catch
               System.out.println("No Games found");
          } // End catch
     } // End read
} // End class
Game
class Game { // Begin Class
     private int game;
     Game (int gameIn) { // Begin Game
          game = gameIn;
     } // End Game
     public String getName() { //begin getName
          return name;
     } //end getName
     public int getText() { //begin getText
          return text;
     } // end getText
     public int getPrice() { //begin getPrice
          return price;
     } // end getPrice
} //End Class
ErrorDialog
import java.awt.*;
import java.awt.event.*;
class ErrorDialog extends Dialog implements ActionListener {
private Label errorLabel = new Label("Message space here",Label.CENTER);
private String errorMessage;
private Button okButton = new Button("OK");
public ErrorDialog(Frame frameIn, String message) {
/* call the constructor of Dialog with the associated
frame as a parameter */
super(frameIn);
// add the components to the Dialog
          errorLabel.setText(message);
          add("North",errorLabel);
add("South",okButton);
// add the ActionListener
okButton.addActionListener(this);
/* set the location of the dialogue window, relative to the top
left-hand corner of the frame */
setLocation(100,100);
// use the pack method to automatically size the dialogue window
pack();
// make the dialogue visible
setVisible(true);
/* the actionPerformed method determines what happens
when the okButton is pressed */
public void actionPerformed(ActionEvent e) {
dispose(); // no other possible action!
} // end class
EasyFrame
import java.awt.*;
import java.awt.event.*;
public class EasyFrame extends Frame implements WindowListener {
public EasyFrame()
addWindowListener(this);
public EasyFrame(String msg)
super(msg);
addWindowListener(this);
public void windowClosing(WindowEvent e)
dispose();
public void windowDeactivated(WindowEvent e)
public void windowActivated(WindowEvent e)
public void windowDeiconified(WindowEvent e)
public void windowIconified(WindowEvent e)
public void windowClosed(WindowEvent e)
System.exit(0);
public void windowOpened(WindowEvent e)
} // end EasyFrame class
CreditDialog
import java.awt.*;
import java.awt.event.*;
class CreditDialog extends Dialog implements ActionListener { // Begin Class
     private Label creditLabel = new Label("Message space here",Label.CENTER);
     private String creditMessage;
     private TextField remove = new TextField(20);
     private Button okButton = new Button("OK");
     public CreditDialog(Frame frameIn, String message) { // Begin Public
          super(frameIn); // call the constructor of dialog
          creditLabel.setText(message);
          add("North",creditLabel);
          add("Center",remove);
          add("South",okButton);
          okButton.addActionListener(this);
          setLocation(150,150); // set the location of the dialog box
          setSize(300,100); // sets the size of the dialog
          setVisible(true); // make the dialog box visible
     } // End Public
     public void actionPerformed(ActionEvent e) { // Begin actionPerformed
          dispose(); // close dialog box
     } // End actionPerformed
} // End Class
CreateDataFile
import java.awt.*;
import java.awt.event.*;
class CreateDataFile extends Panel implements ActionListener {
     private Panel input = new Panel();
     private Panel buttons = new Panel();
     private Label gameLabel = new Label("Game Description",Label.RIGHT);
     private TextField game = new TextField(18);
     private Label cataloqueLabel = new Label("Cataloque Number",Label.RIGHT);
     private TextField cataloque = new TextField(4);
     private Label priceLabel = new Label("Price in pounds",Label.RIGHT);
     private TextField price = new TextField(6);
     private Button inputButton = new Button("Input Data");
     private Button listButton = new Button("List Data");
     private Button eraseButton = new Button("Erase No");
     private TextField erase = new TextField(2);
     private Button saveButton = new Button("Save Data");
     private Button loadButton = new Button("Load Data");
     private Button quitButton = new Button("Quit");
     private TextArea listArea = new TextArea(10, 30);
     private ObjectList dataList = new ObjectList(20);
     Frame parentFrame; // needed to associate with dialog
     public CreateDataFile(Frame frameIn) { //begin constructor
          parentFrame = frameIn;
          input.add(gameLabel);
          input.add(game);
          input.add(cataloqueLabel);
          input.add(cataloque);
          input.add(priceLabel);
          input.add(price);
          buttons.add(inputButton);
          buttons.add(listButton);
          buttons.add(eraseButton);
          buttons.add(erase);
          buttons.add(saveButton);
          buttons.add(loadButton);
          buttons.add(quitButton);
          this.setLayout( new BorderLayout());
          add("North",input);
          add("Center",buttons);
          add("South",listArea);
          inputButton.addActionListener(this);
          listButton.addActionListener(this);
          eraseButton.addActionListener(this);
          saveButton.addActionListener(this);
          loadButton.addActionListener(this);
          quitButton.addActionListener(this);
     } //end constructor
     public void actionPerformed(ActionEvent e) { //begin actionPerformed
          MobileGame aMobileGame;
          try { //begin try
               if (e.getSource() == inputButton) { //begin if
                    if(game.getText().length()==0|| cataloque.getText().length()==0|| price.getText().length()==0) { //begin if
                         new ErrorDialog(parentFrame,"All Field(s) Must be Emtered");
                    } else if(dataList.isFull() ) { //begin else if
                         new ErrorDialog(parentFrame,"List Full");
                    } else { //begin else
                         aMobileGame = new MobileGame (game.getText(),cataloque.getText(),Double.parseDouble(price.getText()));
                         dataList.add(aMobileGame);
                         game.setText("");
                         cataloque.setText("");
                         price.setText("");
                    }// end else
               }// end inputbutton
          } catch (NumberFormatException ex) { // Catch invalid price error
               if (price.getText().length()!=0) { //Begin ErrorDialog
                    new ErrorDialog(parentFrame,"Invalid price");     
               } //end ErrorDialog
          } //end catch
          if (e.getSource() == listButton) { //begin listButton
               if (dataList.isEmpty() ) { //begin if
                    new ErrorDialog(parentFrame,"The Datalist is Empty");
               } else {
                    listArea.setText(""); // clear textArea first
                         for (int i=1; i <= dataList.getTotal(); i++) {
                              aMobileGame = (MobileGame) dataList.getObject(i);
                              listArea.append(i + " " + aMobileGame.getName()
                              + " cat no: "+ aMobileGame.getText()
                              + " price: "+aMobileGame.getPrice()+"\n");
                         } //end for
               }// end if
          } // end listButton
          if (e.getSource() == eraseButton) { //begin eraseButton
               try { //begin Try
                    if (dataList.isEmpty() ) { //begin isEmpty
                         new ErrorDialog(parentFrame,"Nothing to Erase");
                    } else if ( erase.getText().length()==0 ) { //begin  if
                         new ErrorDialog(parentFrame,"Erase Field Balnk");
                    } else if(Integer.parseInt(erase.getText())<=0 || Integer.parseInt(erase.getText())>20){ //begin if
                         new ErrorDialog(parentFrame,"Number out of Range");
                    } else { //begin else
                         int num = Integer.parseInt(erase.getText());
                         boolean ok = dataList.remove(num);
                         listArea.setText("");
                         erase.setText("");
                         for(int i=1; i<=dataList.getTotal(); i++){ //begin for
                              aMobileGame = (MobileGame)dataList.getObject(i);
                              listArea.append(i + " " + aMobileGame.getName()
                              + " cat no: "+ aMobileGame.getText()
                              + " price: "+aMobileGame.getPrice()+"\n");
                         } //end for
                    }// end if
               } catch (NumberFormatException ex) { //begin catch
                    if(erase.getText().length()!=0) {// begin ErrorDialog
                         new ErrorDialog(parentFrame,"Invalid Format");
                    } //end ErrorDialog
                    erase.setText("");// to clear the erase filed first
               } //end catch
          } //end eraseButton
          if (e.getSource() == loadButton) { //begin loadButton
               if ( ! GameFileHandler.readRecords( dataList)) { //begin readRecords
               } //end readRecords
          } // end if
          if (e.getSource() == saveButton) { //Begin saveButton
               if (dataList.isEmpty() ) { //begin dataList
                    new ErrorDialog(parentFrame,"The GameList is Empty");
               } else if ( ! GameFileHandler.saveRecords( dataList) ) { //begin else
                    new ErrorDialog(parentFrame,"Error Saving File");
               } // end if
          } //end saveButton
          if(e.getSource() == quitButton){ //begin quitButton
               System.exit(0);
          } // end quitButton
     }// end actionPerformed
}//end class CreateDataFile
I know that there are alot of files, but most is ok and i have made it easy to understand.

Answer 1

If you want you can give me your email address so we can message eachother quicker than checking here every 15 minutes. I can help you during the evenings because you need a lot of work.