Program imp. doc. inventory lx22

Hello guru´s
I need to change the output of inventory document and I nedd to know wich is the printer program to modify by the developer.
The t.code that generated this document inventory is LX22
Thanks a lot
Best regars

did you ever use the menu in SAP?
directly above the transaction LX22 is the transaction LI04 which is the natural  transaction to print inventory documents, while LX22 is and overview a kind of cockpit that allows multiple things.
But in LI04, you see all what you want to know directly in the initial screen

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                objectOutput = new ObjectOutputStream( new FileOutputStream( "C:/inventory.dat" ) );
                objectOutput.close();
                objectInput = new ObjectInputStream( new FileInputStream( "C:/inventory.dat" ) );
                JOptionPane.showMessageDialog( null, "Inventory file has been created.", "File Created", JOptionPane.INFORMATION_MESSAGE );
              while ( true )
                /** Reads one item object from inventory.dat.*/
                item = ( Item ) objectInput.readObject();
                String idString = item.getID();
                String qtyString = "" + item.getQty();
                String priceString = "" + toMoney.format (item.getPrice());
                id.add( i, idString );
                qty.add( i, qtyString );
                price.add( i, priceString );
                i++;
          /** Closes file when end of file is reached.*/
          catch ( EOFException eofException )
             objectInput.close();
        /** The Method exitForm() sets what to do when window is closed.*/
        public void saveFile() throws IOException
         /** Makes file inventory.dat.*/
         objectOutput = new ObjectOutputStream( new FileOutputStream( "C:/inventory.dat" ));
         /** Saves three vectors as objects of the Item class into inventory.dat.*/
         for ( int i = 0; i < id.size(); i++ )
         String idString = (String)id.get(i);
         int qtyInt = Integer.parseInt( (String)qty.get(i) );
         double priceDouble = Double.parseDouble( (String)price.get(i) );
         Item item = new Item( idString, qtyInt, priceDouble );
         objectOutput.writeObject( item );
         /** Closes inventory.dat.*/
         objectOutput.close();
    }This is the computer class. It is used to calculate sale prices and print the reciept for each sale. It does everything it's supposed to except update the inventory, which I just haven't written the code for yet.
    /** Java core packages*/
    import java.util.*;
    import java.text.*;
    import java.awt.*;
    import java.awt.event.*;
    /** Java extension packages*/
    import javax.swing.*;
    import javax.swing.text.*;
    import javax.swing.event.*;
    import java.io.*;
    /** This program is used to calculate the sale price
    * of selected items and update the inventory with
    * each sale. It opens and saves into a file "inventory.dat".
    * @author Davin Green
    public class Computer extends LogIn
        private double salePrice;
        private JTextArea jTextArea1;
        private Choice choice1;
        private JSeparator jSeparator1;
        private static Computer window;
        /** Default constructor.*/
        public Computer()
          super("Sale Program");
          try{
            try {
              openFile();
              createGUI();
              registerCompEventHandlers();
              salePrice = 0.0;
            catch ( ClassNotFoundException e )
          catch ( IOException e )
        /** The createGUI() methods creates and displays GUI components in the JFrame.*/
        private void createGUI()
            jList1 = new JList();
            saleItems = new Vector();
            saleItemsQty = new Vector();
            /** Get JFrames content pane and set layout to null.*/
            Container container = getContentPane();
            container.setLayout(null);
            choice1 = new Choice();
            makeChoiceMenu();
            container.add(choice1);
            choice1.setBounds(40, 50, 130, 20);
            jButton1 = new JButton();
            jButton1.setText("Add Item");
            container.add(jButton1);
            jButton1.setBounds(270, 50, 130, 20);
            jButton2 = new JButton();
            jButton2.setText("Remove Item");
            container.add(jButton2);
            jButton2.setBounds(270, 80, 130, 20);
            jButton2.setEnabled( false );
            jButton3 = new JButton();
            jButton3.setText("Print Reciept");
            container.add(jButton3);
            jButton3.setBounds(270, 110, 130, 20);
            jButton3.setEnabled( false );
            jButton4 = new JButton();
            jButton4.setText("New Sale");
            container.add(jButton4);
            jButton4.setBounds(270, 140, 130, 20);
            jButton4.setEnabled( false );
            jButton5 = new JButton();
            jButton5.setText("Change Cashier");
            container.add(jButton5);
            jButton5.setBounds(410, 240, 130, 20);
            jButton6 = new JButton();
            jButton6.setText("Edit Inventory");
            container.add(jButton6);
            jButton6.setBounds(410, 270, 130, 20);
            jButton7 = new JButton();
            jButton7.setText("Edit Qty");
            container.add(jButton7);
            jButton7.setBounds(100, 80, 100, 20);
            jButton7.setEnabled( false );
            jScrollPane1 = new JScrollPane();
            jTextArea1 = new JTextArea();
            container.add(jScrollPane1);
            jScrollPane1.setBounds(10, 190, 390, 100);
            jScrollPane2 = new JScrollPane();
            jScrollPane2.getViewport().add( jList1 );
            container.add(jScrollPane2);
            jScrollPane2.setBounds(410, 40, 130, 190);
            jSeparator1 = new JSeparator();
            container.add(jSeparator1);
            jSeparator1.setBounds(10, 40, 390, 10);
            jTextField1 = new JTextField();
            jTextField1.setEditable(false);
            jTextField1.setText("Cashier Name");
            container.add(jTextField1);
            jTextField1.setBounds(60, 10, 170, 20);
            jTextField2 = new JTextField();
            jTextField2.setEditable(false);
            jTextField2.setBounds(240, 10, 80, 20);
            jTextField3 = new JTextField();
            jTextField3.setEditable(false);
            DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);
            jTextField3.setText(dateFormat.format(new Date()));
            container.add(jTextField3);
            jTextField3.setBounds(330, 10, 70, 20);
            jTextField4 = new JTextField();
            jTextField4.setText("");
            container.add(jTextField4);
            jTextField4.setBounds(60, 80, 30, 20);
            jText1 = jTextField4.getDocument();
            jTextField5 = new JTextField();
            jTextField5.setText("$0.00");
            container.add(jTextField5);
            jTextField5.setBounds(100, 140, 100, 20);
            jTextField6 = new JTextField();
            jTextField6.setEditable(false);
            jTextField6.setText("$0.00");
            container.add(jTextField6);
            jTextField6.setBounds(100, 110, 100, 20);
            label1 = new Label();
            label1.setText("Cashier");
            container.add(label1);
            label1.setBounds(10, 10, 48, 20);
            label2 = new Label();
            label2.setText("Item");
            container.add(label2);
            label2.setBounds(10, 50, 28, 20);
            label3 = new Label();
            label3.setText("Selected Item");
            container.add(label3);
            label3.setBounds(410, 20, 90, 20);
            label4 = new Label();
            label4.setText("Reciept");
            container.add(label4);
            label4.setBounds(10, 170, 50, 20);
            label5 = new Label();
            label5.setText("Quantity");
            container.add(label5);
            label5.setBounds(10, 80, 50, 20);
            label6 = new Label();
            label6.setText("Amount Paid");
            container.add(label6);
            label6.setBounds(10, 140, 80, 20);
            label7 = new Label();
            label7.setText("Sale Price");
            container.add(label7);
            label7.setBounds(10, 110, 60, 20);
            pack();
        /** The method registerEventHandlers() sets what each GUI object does.*/
        private void registerCompEventHandlers()
          ActionListener al = new ActionListener(){
                DateFormat fmt = DateFormat.getTimeInstance(DateFormat.SHORT);
                public void actionPerformed(ActionEvent evt) {
                    jTextField2.setText(fmt.format(new Date()));
            new javax.swing.Timer(1000, al).start();
            getContentPane().add(jTextField2);
            SwingUtilities.invokeLater(new Runnable(){
                public void run() {
          /** Sets program to call method exitForm() when window is closed.*/
          addWindowListener( new WindowAdapter()
                               public void windowClosing(WindowEvent evt)
                                 try {
                                   saveFile();
                                   System.exit(0);
                                 catch ( IOException ioException )
          /** Tells what to do when an item is selected on the drop down menu.*/
          final ItemListener choiceListener;
          choice1.addItemListener(
           choiceListener = new ItemListener()
             public void itemStateChanged( ItemEvent event )
               boolean itemNotExist = true;
               for ( int i = 0; i < saleItems.size(); i++ )
                 if ( choice1.getSelectedItem() == (String)saleItems.get( i ) )
                   itemNotExist = false;
                   jList1.setSelectedIndex( i );
                   jTextField4.setText( (String)saleItemsQty.get( i ) );
               if ( itemNotExist == true )
                 jTextField4.setText( "" );
               jButton1.setEnabled( itemNotExist );
               jButton7.setEnabled( false );
          /** When an item is selected, the items information is
           * displayed in the corresponding text field.*/
          jList1.addListSelectionListener(
           new ListSelectionListener()
             public void valueChanged( ListSelectionEvent event )
              if ( event.getSource() == jList1 && !event.getValueIsAdjusting() )
               int selection = 0;
               String selectionQty;
               try {
                 for ( int i = 0; i < choice1.getItemCount(); i++ )
                   if ( choice1.getItem(i) == jList1.getSelectedValue() )
                     selection = i;
                 selectionQty = (String)saleItemsQty.get( jList1.getSelectedIndex() );
                 choice1.select( selection );
               catch ( ArrayIndexOutOfBoundsException aoobException )
                selectionQty = "";
               jTextField4.setText( selectionQty );
               jButton1.setEnabled( false );
               jButton2.setEnabled( true );
               jButton3.setEnabled( true );
               jButton4.setEnabled( true );
               jButton7.setEnabled( false );
          /** Listens to jTextField and detects changes. */
          jText1.addDocumentListener(
            new DocumentListener()
              public void changedUpdate(DocumentEvent e)
                if ( saleItems.size() > 0 )
                  for ( int i = 0; i < saleItems.size(); i++ )
                    if ( choice1.getSelectedItem() == (String)saleItems.get( i ) )
                      jButton1.setEnabled( false );
                      if ( jTextField4.getText() != saleItemsQty.get( i ) )
                        jButton7.setEnabled( true );
                      else
                        jButton7.setEnabled( false );
                else
                  jButton1.setEnabled( true );
                  jButton7.setEnabled( false );
              public void insertUpdate(DocumentEvent e)
                if ( saleItems.size() > 0 )
                  for ( int i = 0; i < saleItems.size(); i++ )
                    if ( choice1.getSelectedItem() == (String)saleItems.get( i ) )
                      jButton1.setEnabled( false );
                      if ( jTextField4.getText() != saleItemsQty.get( i ) )
                        jButton7.setEnabled( true );
                      else
                        jButton7.setEnabled( false );
                else
                  jButton1.setEnabled( true );
                  jButton7.setEnabled( false );
              public void removeUpdate(DocumentEvent e)
                if ( saleItems.size() > 0 )
                  for ( int i = 0; i < saleItems.size(); i++ )
                    if ( choice1.getSelectedItem() == (String)saleItems.get( i ) )
                      jButton1.setEnabled( false );
                      if ( jTextField4.getText() != saleItemsQty.get( i ) )
                        jButton7.setEnabled( true );
                      else
                        jButton7.setEnabled( false );
                else
                  jButton1.setEnabled( true );
                  jButton7.setEnabled( false );
          /** When "Add Item" button is clicked, a new element
           *  is added to each vector.*/
          jButton1.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               String quantity = jTextField4.getText();
               jTextField4.setText( "" );
                try{
                 for ( int i = 0; i < id.size(); i++ )
                  if ( (String)id.get(i) == choice1.getSelectedItem() )
                    salePrice += ( Double.parseDouble( (String)price.get(i) ) * Double.parseDouble( quantity ) );
                 String newPrice = "$" + salePrice;
                 saleItems.add( choice1.getSelectedItem() );
                 saleItemsQty.add( quantity );
                 jList1.setListData( saleItems );
                 jScrollPane2.revalidate();
                 jScrollPane2.repaint();
                 jTextField6.setText( newPrice );
                 jButton1.setEnabled( false );
                catch ( NumberFormatException num )
                  JOptionPane.showMessageDialog( null, "Please enter a valid quantity!", "Error", JOptionPane.ERROR_MESSAGE );
                jList1.setSelectedIndex( saleItems.size() - 1 );
          /** When "Remove" button is clicked, the selected item is removed
           * from all vectors.*/
          jButton2.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               try {
               int selection = jList1.getSelectedIndex();
                 for ( int i = 0; i < id.size(); i++ )
                  if ( (String)id.get(i) == choice1.getSelectedItem() )
                   salePrice -= ( Double.parseDouble( (String)price.get(i) ) * Double.parseDouble( (String)saleItemsQty.get( selection )  ) );
                 String newPrice = "$" + salePrice;
                 saleItems.removeElementAt( selection );
                 saleItemsQty.removeElementAt( selection );
                 jList1.setListData( saleItems );
                 jScrollPane2.revalidate();
                 jScrollPane2.repaint();
                 jTextField6.setText( newPrice );
                 if( selection >= id.size() )
                  selection = id.size() - 1;
                 jList1.setSelectedIndex( selection );
               catch ( ArrayIndexOutOfBoundsException exception )
                 JOptionPane.showMessageDialog( null, "Please select an item to remove!", "Error", JOptionPane.ERROR_MESSAGE );
               if ( saleItems.size() == 0 )
                 jButton2.setEnabled( false );
               else
                 jButton2.setEnabled( true );
          /** When "Set Qty" button is clicked, the quantity of
           * the selected item is changed to the integer in
           * the qty text field.*/
          jButton7.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               int selection = jList1.getSelectedIndex();
               String newQty = jTextField4.getText();
               try {
                 int numbertest = Integer.parseInt( newQty );
                 for ( int i = 0; i < id.size(); i++ )
                  if ( (String)id.get(i) == choice1.getSelectedItem() )
                   salePrice -= ( Double.parseDouble( (String)price.get(i) ) * Double.parseDouble( (String)saleItemsQty.get( selection )  ) );
                   salePrice += ( Double.parseDouble( (String)price.get(i) ) * Double.parseDouble( newQty ) );
                 String newPrice = "$" + salePrice;
                 saleItems.set( selection, choice1.getSelectedItem() );
                 saleItemsQty.set( selection, newQty );
                 jScrollPane2.revalidate();
                 jScrollPane2.repaint();
                 jTextField6.setText( newPrice );
                 jButton7.setEnabled( false );
               catch ( NumberFormatException badinput )
                 JOptionPane.showMessageDialog( null, "Please enter an integer!", "Error", JOptionPane.ERROR_MESSAGE );
          /** When "Print Reciept" button is clicked, the price of
           * the selected item is changed to the double in
           * the price text field.*/
          jButton3.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               try{
               String reciept = "\tStore Name";
               String items = "";
               String temp = jTextField5.getText();
               String amountPaidString = "";
               double amountPaid = 0.0;
               double change;
               for ( int i = 1; i < temp.length(); i++ )
                 char a = temp.charAt(0);
                 char b = temp.charAt(i);
                 if ( a == '$' )
                   amountPaidString += b;
                 else
                   amountPaidString = "Error";
               amountPaid = Double.parseDouble( amountPaidString );
               if (amountPaid >= salePrice)
               change = amountPaid - salePrice;
               reciept += "\nDate: " + jTextField3.getText()
                 + "\t\tTime: " + jTextField2.getText()
                 + "\nCashier: " + jTextField1.getText()
                 + "\n\n\tItems:";
               for ( int i = 0; i < saleItems.size(); i++ )
                 items += "\n" + saleItems.get( i ) + "\t\t$";
                 for ( int h = 0; h < id.size(); h++ )
                  if ( (String)id.get(h) == (String)saleItems.get( i ) )
                    items += ( Double.parseDouble( (String)price.get(h) ) * Double.parseDouble( (String)saleItemsQty.get(h) ) );
               reciept += items + "\n\nTOTAL:\t$" + salePrice
                 + "\nAmount Paid:\t$" + amountPaid
                 + "\nChange:\t$" + change; 
                 jTextArea1.setText( reciept );
                 jScrollPane1.getViewport().add( jTextArea1 );
                 jScrollPane1.revalidate();
                 jScrollPane1.repaint();
                 jButton1.setEnabled( false );
                 jButton2.setEnabled( false );
                 jButton3.setEnabled( false );
                 jButton7.setEnabled( false );
                 jTextField4.setEditable( false );
                 jTextField5.setEditable( false );
                 choice1.removeItemListener( choiceListener );
               else
                 JOptionPane.showMessageDialog( null, "Amount Paid is not enough!", "Error", JOptionPane.ERROR_MESSAGE );
               catch ( NumberFormatException badinput )
                 JOptionPane.showMessageDialog( null, "Please enter a valid amount paid!", "Error", JOptionPane.ERROR_MESSAGE );
          jButton4.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               int select = 3;
               select = JOptionPane.showConfirmDialog( null, "Are you sure you want quit this sale?" );
               if (select == 0)
                 String[] run = {"xxx","yyy"};
                 window.hide();
                 main( run );
          jButton5.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               /* Code for what to do when "Change Cashier" button is clicked*/ /*
          jButton6.addActionListener(
           new ActionListener()
             public void actionPerformed( ActionEvent event )
               Inventory inventory = new Inventory();
               try{
               saveFile();
               catch ( IOException e )
               window.hide();
               inventory.runInventory();
               window = null;
        private void makeChoiceMenu()
          for ( int i = 0; i < id.size(); i++ )
            choice1.add( (String)id.get( i ) );
        /** The main method.*/
        public static void runComputer()
            window = new Computer();
            window.setSize(555, 335);
            window.show();
    }This is the inventory class. It's used to make and edit the items in the inventory and then save them into the inventory file.
    /** Java core packages*/
    import java.util.*;
    import java.text.*;
    import java.awt.*;
    import java.awt.event.*;
    /** Java extension packages*/
    import javax.swing.*;
    import javax.swing.text.*;
    import javax.swing.event.*;
    import java.io.*;
    /** This program displays the inventory of a store and
    * allows user to edit each items name, quantity, and
    * price. It opens and saves into a file "inventory.dat".
    * @author Davin Green
    public class Inventory extends LogIn
        private static Inventory window;
        /** Default constructor.*/
        public Inventory()
          super("Inventory Editor");
          try{
            try{
            openFile();
            createInvGUI();
            registerInvEventHandlers();
            catch ( IOException e )
          catch ( ClassNotFoundException e )
        /** The createGUI() methods creates and displays GUI components in the JFrame.*/
        private void createInvGUI() throws IOException
            /** Get JFrames content pane and set layout to null.*/
            Container container = getContentPane();
            container.setLayout(null);
            /** List of items displayed in scrolling pane.*/
            jList1 = new JList( id );
            /** Put JList into the scrolling pane, add scrolling pane
             * to content pane, and set position and size.*/
            jScrollPane1 = new JScrollPane();
            jScrollPane1.getViewport().add( jList1 );
            container.add(jScrollPane1);
            jScrollPane1.setBounds(0, 0, 210, 370);
            /** Button for adding a new item.*/
            jButton1 = new JButton();
            jButton1.setText("Add Item");
            container.add(jButton1);
            jButton1.setBounds(240, 10, 90, 30);
            /** Button for deleting a selected item.*/
            jButton2 = new JButton();
            jButton2.setText("Delete");
            container.add(jButton2);
            jButton2.setBounds(290, 50, 90, 30);
            /** Button for setting the quantity of an item.*/
            jButton3 = new JButton();
            jButton3.setText("Set Qty");
            container.add(jButton3);
            jButton3.setBounds(240, 100, 90, 30);
            /** Button for setting the price of an item.*/
            jButton4 = new JButton();
            jButton4.setText("Set Price");
            container.add(jButton4);
            jButton4.setBounds(240, 150, 90, 30);
            /** Text field for inputing and displaying the id (name) of an item.*/
            jTextField1 = new JTextField();
            container.add(jTextField1);
            jTextField1.setBounds(340, 10, 93, 30);
            jText1 = jTextField1.getDocument();
            /** Text field for inputing and displaying the quantity of an item.*/
            jTextField2 = new JTextField();
            container.add(jTextField2);
            jTextField2.setBounds(370, 100, 43, 30);
            jText2 = jTextField2.getDocument();
            /** Text field for inputing and displaying the price of an item.*/
            jTextField3 = new JTextField();
            container.add(jTextField3);
            jTextField3.setBounds(370, 150, 43, 30);
            jText3 = jTextField3.getDocument();
            /** Displays "Qty" before the quantity text field.*/
            label1 = new Label();
            label1.setText("Qty");
            container.add(label1);
            label1.setBounds(350, 100, 20, 20);
            /** Displays "Price" before the price text field.*/
            label2 = new Label();
            label2.setText("Price");
            container.add(label2);
            label2.setBounds(340, 150, 30, 20);
            /** Button to change cashier (return to cashier log-in panel).*/
            jButton5 = new JButton();
            jButton5.setText("Change Cashier");
            container.add(jButton5);
            jButton5.setBounds(260, 270, 130, 30);
            /** Button to make sell (open make sell panel).*/
            jButton6 = new JButton();
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

    /** JTextField objects for the text fields that are used in these programs.*/
    public JTextField jTextField1, jTextField2, jTextField3,
                    jTextField4, jTextField5, jTextField6;Your variable names don't mean anything.
    So the person who has to maintain this program when you leave has a difficult task.
    If there was some indication that the operator would key in (say) a quantity, that would
    make it easier. You might name it "quantityText" in that case, or something like that.

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