Accessing an Array List from another class

Question

Hi, I was a member on here before, but I forgot my password and my security question is wrong.
My question is how do I access a private arraylist from a different class in the same package?
What I am trying to do is the following (hard to explain).
Make a picking client for a shop, so that when an order is recieved, the picker can click on the orders button, and view all of the current orders that have not been completed. This Pick client has its own user interface, in a seperate class from where the BoughtList array is created, in the cashier client. The boughtlist is created when the cashier puts in the product number into the cashier client and clicks buy. I seem to be having trouble accessing the list from another class. Once the order is completed the cashier clicks bought and the list is reset. There is another class in a different pagage that processes some of the functions of the order, eg newOrder().
Yes it is for Uni so I dont need / want the full answers, jist something to get started. Also please dont flame me, I have done many other parts of this project, just having trouble getting started on this one.
Here is the code for the cashier client. The code for the Pick client is almost the same, I just need to make the code that displays the orders.
package Clients;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.NumberFormat;
import java.util.Locale;
import Catalogue.*;
import DBAccess.*;
import Processing.*;
import Middle.*;
class CashierGUI 
  class STATE                             // Cashier states
    public static final int PROCESS  = 0;
    public static final int CHECKED  = 1;
  class NAME                             // Names of buttons
    public static final String CHECK  = "Check";
    public static final String BUY    = "Buy";
    public static final String CANCEL = "Cancel";
    public static final String BOUGHT = "Bought";
  private static final int H = 300;       // Height of window pixels
  private static final int W = 400;       // Width  of window pixels
  private JLabel      theAction  = new JLabel();
  private JTextField  theInput   = new JTextField();
  private JTextArea   theOutput  = new JTextArea();
  private JScrollPane theSP      = new JScrollPane();
  private JButton     theBtCheck = new JButton( NAME.CHECK );
  private JButton     theBtBuy   = new JButton( NAME.BUY );
  private JButton     theBtCancel= new JButton( NAME.CANCEL );
  private JButton     theBtBought= new JButton( NAME.BOUGHT );
  private int         theState   = STATE.PROCESS;   // Current state
  private Product     theProduct = null;            // Current product
  private BoughtList  theBought  = null;            // Bought items
  private Transaction     theCB        = new Transaction();
  private StockReadWriter theStock     = null;
  private OrderProcessing theOrder     = null;
  private NumberFormat theMoney  =
          NumberFormat.getCurrencyInstance( Locale.UK );
  public CashierGUI(  RootPaneContainer rpc, MiddleFactory mf  )
    try                                             //
      theStock = mf.getNewStockReadWriter();        // DataBase access
      theOrder = mf.getNewOrderProcessing();        // Process order
    } catch ( Exception e )
      System.out.println("Exception: " + e.getMessage() );
    Container cp         = rpc.getContentPane();    // Content Pane
    Container rootWindow = (Container) rpc;         // Root Window
    cp.setLayout(null);                             // No layout manager
    rootWindow.setSize( W, H );                     // Size of Window
    Font f = new Font("Monospaced",Font.PLAIN,12);  // Font f is
    theBtCheck.setBounds( 16, 25+60*0, 80, 40 );    // Check Button
    theBtCheck.addActionListener( theCB );          // Listener
    cp.add( theBtCheck );                           //  Add to canvas
    theBtBuy.setBounds( 16, 25+60*1, 80, 40 );      // Buy button
    theBtBuy.addActionListener( theCB );            //  Listener
    cp.add( theBtBuy );                             //  Add to canvas
    theBtCancel.setBounds( 16, 25+60*2, 80, 40 );   // Cancel Button
    theBtCancel.addActionListener( theCB );         //  Listener
    cp.add( theBtCancel );                          //  Add to canvas
    theBtBought.setBounds( 16, 25+60*3, 80, 40 );   // Clear Button
    theBtBought.addActionListener( theCB );         //  Listener
    cp.add( theBtBought );                          //  Add to canvas
    theAction.setBounds( 110, 25 , 270, 20 );       // Message area
    theAction.setText( "" );                        // Blank
    cp.add( theAction );                            //  Add to canvas
    theInput.setBounds( 110, 50, 270, 40 );         // Input Area
    theInput.setText("");                           // Blank
    cp.add( theInput );                             //  Add to canvas
    theSP.setBounds( 110, 100, 270, 160 );          // Scrolling pane
    theOutput.setText( "" );                        //  Blank
    theOutput.setFont( f );                         //  Uses font 
    cp.add( theSP );                                //  Add to canvas
    theSP.getViewport().add( theOutput );           //  In TextArea
    rootWindow.setVisible( true );                  // Make visible
  class Transaction implements ActionListener       // Listener
    public void actionPerformed( ActionEvent ae )   // Interaction
      if ( theStock == null )
        theAction.setText("No conection");
        return;                                     // No connection
      String actionIs = ae.getActionCommand();      // Button
      try
        if ( theBought == null )
          int on    = theOrder.uniqueNumber();      // Unique order no.
          theBought = new BoughtList( on );         //  Bought list
        if ( actionIs.equals( NAME.CHECK ) )        // Button CHECK
          theState  = STATE.PROCESS;                // State process
          String pn  = theInput.getText().trim();   // Product no.
          int    amount  = 1;                       //  & quantity
          if ( theStock.exists( pn ) )              // Stock Exists?
          {                                         // T
            Product pr = theStock.getDetails(pn);   //  Get details
            if ( pr.getQuantity() >= amount )       //  In stock?
            {                                       //  T
              theAction.setText(                    //   Display
                pr.getDescription() + " : " +       //    description
                theMoney.format(pr.getPrice()) +    //    price
                " (" + pr.getQuantity() + ")"       //    quantity
              );                                    //   of product
              theProduct = pr;                      //   Remember prod.
              theProduct.setQuantity( amount );     //    & quantity
              theState = STATE.CHECKED;             //   OK await BUY
            } else {                                //  F
              theAction.setText(                    //   Not in Stock
                pr.getDescription() +" not in stock"
          } else {                                  // F Stock exists
            theAction.setText(                      //  Unknown
              "Unknown product number " + pn        //  product no.
        if ( actionIs.equals( NAME.BUY ) )          // Button BUY
          if ( theState != STATE.CHECKED )          // Not checked
          {                                         //  with customer
            theAction.setText("Check if OK with customer first");
            return;
          boolean stockBought =                      // Buy
            theStock.buyStock(                       //  however
              theProduct.getProductNo(),             //  may fail             
              theProduct.getQuantity() );            //
          if ( stockBought )                         // Stock bought
          {                                          // T
            theBought.add( theProduct );             //  Add to bought
            theOutput.setText( "" );                 //  clear
            theOutput.append( theBought.details());  //  Display
            theAction.setText("Purchased " +         //    details
                       theProduct.getDescription()); //
//          theInput.setText( "" );
          } else {                                   // F
            theAction.setText("!!! Not in stock");   //  Now no stock
          theState = STATE.PROCESS;                  // All Done
        if ( actionIs.equals( NAME.CANCEL ) )        // Button CANCEL
          if ( theBought.number() >= 1 )             // item to cancel
          {                                          // T
            Product dt =  theBought.remove();        //  Remove from list
            theStock.addStock( dt.getProductNo(),    //  Re-stock
                               dt.getQuantity()  );  //   as not sold
            theAction.setText("");                   //
            theOutput.setText(theBought.details());  //  display sales
          } else {                                   // F
            theOutput.setText( "" );                 //  Clear
          theState = STATE.PROCESS;
        if ( actionIs.equals( NAME.BOUGHT ) )        // Button Bought
          if ( theBought.number() >= 1 )             // items > 1
          {                                          // T
            theOrder.newOrder( theBought );          //  Process order
            theBought = null;                        //  reset
          theOutput.setText( "" );                   // Clear
          theInput.setText( "" );                    //
          theAction.setText( "Next customer" );      // New Customer
          theState = STATE.PROCESS;                  // All Done
        theInput.requestFocus();                     // theInput has Focus
      catch ( StockException e )                     // Error
      {                                              //  Of course
        theOutput.append( "Fail Stock access:" +     //   Should not
                            e.getMessage() + "\n" ); //  happen
      catch ( OrderException e )                     // Error
      {                                              //  Of course
        theOutput.append( "Fail Order process:" +    //   Should not
                            e.getMessage() + "\n" ); //  happen
}

Answer 1

(disclaimer: I did not read through your Swing code, as I find that painful)
My question is how do I access a private arraylist from a different class in the same
package?Provide a public accessor method (getMyPrivateArrayList())