尝试清空JTable时ArrayIndexOutOfBoundsException

时间:2012-09-11 10:55:16

标签: java swing netbeans jtable defaulttablemodel

我创建了以下JTable和一些按钮。 其中一个按钮(jbtClear)尝试使用setRowCount()函数清空表。 任何想法,为什么它不起作用并产生这个错误?

以下是代码:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package nysemarketpick;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Vector;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;

/**
 *
 * @author Administrator
 */
public class PortfolioForm extends javax.swing.JFrame {

    /**
     * Creates new form PortfolioForm
     */
    public PortfolioForm() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jbtAddRow = new javax.swing.JButton();
        jbtDeleteRow = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jPanel2 = new javax.swing.JPanel();
        jbtSave = new javax.swing.JButton();
        jbtClear = new javax.swing.JButton();
        jbtRestore = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("Row functions"));

        jbtAddRow.setText("Add New Row");

        jbtDeleteRow.setText("Delete Selected Row");

        org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jPanel1Layout.createSequentialGroup()
                        .add(34, 34, 34)
                        .add(jbtAddRow))
                    .add(jPanel1Layout.createSequentialGroup()
                        .add(16, 16, 16)
                        .add(jbtDeleteRow)))
                .addContainerGap(40, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .add(jbtAddRow)
                .add(18, 18, 18)
                .add(jbtDeleteRow)
                .addContainerGap(26, Short.MAX_VALUE))
        );

        jTable1.setAutoCreateRowSorter(true);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {

            },
            new String [] {
                "Stock Symbol", "Stock Name", "Shares", "Value (in Dollars)", "Total Value"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.String.class, java.lang.String.class, java.lang.Integer.class, java.lang.Double.class, java.lang.Double.class
            };
            boolean[] canEdit = new boolean [] {
                true, false, true, true, false
            };

            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        tableModel = (DefaultTableModel)jTable1.getModel();
        jTable1.setColumnSelectionAllowed(true);
        jTable1.setRowSelectionAllowed(true);
        jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        jScrollPane1.setViewportView(jTable1);
        jTable1.getColumnModel().getSelectionModel().setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        //add action listeners
        jbtAddRow.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                if (jTable1.getSelectedRow() >= 0)
                tableModel.insertRow(jTable1.getSelectedRow(), new Vector());
                else
                tableModel.addRow(new Vector());
            }
        });
        jbtDeleteRow.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                if (jTable1.getSelectedRow() >= 0)
                tableModel.removeRow(jTable1.getSelectedRow());
            }
        });
        jbtSave.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                try
                {
                    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("portfolio.dat"));
                    out.writeObject(tableModel.getDataVector());
                    out.writeObject(getColumnNames());
                    out.close();
                }
                catch(Exception ex)
                {
                    ex.printStackTrace();
                }
            }
        });
        jbtClear.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                tableModel.setRowCount(0);
            }
        });
        jbtRestore.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                try
                {
                    ObjectInputStream in = new ObjectInputStream(new FileInputStream("portfolio.dat"));
                    Vector rowData = (Vector)in.readObject();
                    Vector columnNames = (Vector)in.readObject();
                    tableModel.setDataVector(rowData, columnNames);
                    in.close();
                }
                catch(Exception ex)
                {
                    ex.printStackTrace();
                }
            }
        });
        //add other listeners
        tableModel.addTableModelListener(new TableModelListener(){
            public void tableChanged(TableModelEvent e)
            {
                DefaultTableModel model = (DefaultTableModel)e.getSource();
                //Object data = model.getValueAt(e.getFirstRow(), e.getColumn());
                if (e.getColumn() == 0)
                {
                    Object data = model.getValueAt(e.getFirstRow(), e.getColumn());
                    String stockSymbol = (String)data;
                    XMLService2 myService = new XMLService2(stockSymbol);
                    String stockName = XMLService2.getStockName();
                    model.setValueAt(stockName, e.getFirstRow(), e.getColumn() + 1);
                }
                if (e.getColumn() != 4 && model.getValueAt(e.getFirstRow(), 2) != null && model.getValueAt(e.getFirstRow(), 3) != null)
                {
                    Double myDouble =(Integer)model.getValueAt(e.getFirstRow(), 2)*(Double)model.getValueAt(e.getFirstRow(), 3);
                    model.setValueAt(myDouble, e.getFirstRow(), 4);
                }
            }
        });

        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("Table functions"));

        jbtSave.setText("Save");

        jbtClear.setText("Clear");

        jbtRestore.setText("Restore");

        org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel2Layout.createSequentialGroup()
                .add(34, 34, 34)
                .add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jbtRestore)
                    .add(jbtClear)
                    .add(jbtSave))
                .addContainerGap(41, Short.MAX_VALUE))
        );

        jPanel2Layout.linkSize(new java.awt.Component[] {jbtClear, jbtRestore, jbtSave}, org.jdesktop.layout.GroupLayout.HORIZONTAL);

        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .add(jbtSave)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jbtClear)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .add(jbtRestore))
        );

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(21, 21, 21)
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 645, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(layout.createSequentialGroup()
                        .add(31, 31, 31)
                        .add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(78, 78, 78)
                        .add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(50, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 399, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(27, 27, 27)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                    .add(jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .add(jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new PortfolioForm().setVisible(true);
            }
        });
    }

    //---other methods
    private Vector getColumnNames()
    {
        Vector<String> columnNames = new Vector<String>();
        for (int i = 0; i < jTable1.getColumnCount(); i++)
            columnNames.add(jTable1.getColumnName(i));

        return columnNames;
    }

    // Variables declaration - do not modify
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    private DefaultTableModel tableModel;
    private javax.swing.JButton jbtAddRow;
    private javax.swing.JButton jbtClear;
    private javax.swing.JButton jbtDeleteRow;
    private javax.swing.JButton jbtRestore;
    private javax.swing.JButton jbtSave;
    // End of variables declaration
}

后期编辑:以下是具有相同功能的书中的工作代码:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package projecttable5;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Vector;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

/**
 *
 * @author Administrator
 */
public class ModifyTable extends JFrame{

    //Create table column names
    private String[] columnNames = {"Country", "Capital", "Population in Millions", "Democracy"};

    //Create table data
    private Object[][] rowData = {

        {"USA", "Washington DC", 280, true},
        {"Canada", "Ottawa", 32, true},
        {"United Kingdom", "London", 60, true},
        {"Germany", "Berlin", 83, true},
        {"France", "Paris", 60, true},
        {"Norway", "Oslo", 4.5, true},
        {"India", "New Delhi", 1046, true}
    };

    //Create a table model
    private DefaultTableModel tableModel = new DefaultTableModel(rowData, columnNames);

    //Create a table
    private JTable jTable1 = new JTable(tableModel);

    //Create buttons
    private JButton jbtAddRow = new JButton("Add New Row");
    private JButton jbtAddColumn = new JButton("Add New Column");
    private JButton jbtDeleteRow = new JButton("Delete Selected Row");
    private JButton jbtDeleteColumn = new JButton("Delete Selected Column");
    private JButton jbtSave = new JButton("Save");
    private JButton jbtClear = new JButton("Clear");
    private JButton jbtRestore = new JButton("Restore");

    //Create a combo box for selection modes
    private JComboBox jcboSelectionMode = new JComboBox(new String[] {"SINGLE_SELECTION", "SINGLE_INTERVAL_SELECTION", "MULTIPLE_INTERVAL_SELECTION"});

    //Create check boxes
    private JCheckBox jchkRowSelectionAllowed = new JCheckBox("RowSelectionAllowed", true);
    private JCheckBox jchkColumnSelectionAllowed = new JCheckBox("ColumnSelectionAllowed", false);


    //---Default constructor
    public ModifyTable()
    {
        JPanel panel1 = new JPanel();
        panel1.setLayout(new GridLayout(2, 2));
        panel1.add(jbtAddRow);
        panel1.add(jbtAddColumn);
        panel1.add(jbtDeleteRow);
        panel1.add(jbtDeleteColumn);

        JPanel panel2 = new JPanel();
        panel2.add(jbtSave);
        panel2.add(jbtClear);
        panel2.add(jbtRestore);

        JPanel panel3 = new JPanel();
        panel3.setLayout(new BorderLayout(5, 0));
        panel3.add(new JLabel("Selection Mode"), BorderLayout.WEST);
        panel3.add(jcboSelectionMode, BorderLayout.CENTER);

        JPanel panel4 = new JPanel();
        panel4.setLayout(new FlowLayout(FlowLayout.LEFT));
        panel4.add(jchkRowSelectionAllowed);
        panel4.add(jchkColumnSelectionAllowed);

        //Gather panel3 and panel4
        JPanel panel5 = new JPanel();
        panel5.setLayout(new GridLayout(2, 1));
        panel5.add(panel3);
        panel5.add(panel4);

        //Gather panel1 and panel2
        JPanel panel6 = new JPanel();
        panel6.setLayout(new BorderLayout());
        panel6.add(panel1, BorderLayout.SOUTH);
        panel6.add(panel2, BorderLayout.CENTER);


        add(panel5, BorderLayout.NORTH);
        add(new JScrollPane(jTable1), BorderLayout.CENTER);
        add(panel6, BorderLayout.SOUTH);

        //Initialize table selection mode
        jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        //Add listeners
        jbtAddRow.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                if (jTable1.getSelectedRow() >= 0)
                    tableModel.insertRow(jTable1.getSelectedRow(), new Vector());
                else
                    tableModel.addRow(new Vector());
            }

        });
        jbtAddColumn.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                String name = JOptionPane.showInputDialog("New Column Name");
                tableModel.addColumn(name, new Vector());
            }

        });
        jbtDeleteRow.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                if (jTable1.getSelectedRow() >= 0)
                    tableModel.removeRow(jTable1.getSelectedRow());
            }

        });
        jbtDeleteColumn.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                if (jTable1.getSelectedColumn() >= 0)
                {
                    TableColumnModel columnModel = jTable1.getColumnModel();
                    TableColumn tableColumn = columnModel.getColumn(jTable1.getSelectedColumn());
                    columnModel.removeColumn(tableColumn);
                }
            }

        });
        jbtSave.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                try
                {
                    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("tablemodel.dat"));
                    out.writeObject(tableModel.getDataVector());
                    out.writeObject(getColumnNames());
                    out.close();
                }
                catch(Exception ex)
                {
                    ex.printStackTrace();
                }
            }

        });
        jbtClear.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                tableModel.setRowCount(0);
            }

        });
        jbtRestore.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                try
                {
                    ObjectInputStream in = new ObjectInputStream(new FileInputStream("tablemodel.dat"));
                    Vector rowData = (Vector)in.readObject();
                    Vector columnNames = (Vector)in.readObject();
                    tableModel.setDataVector(rowData, columnNames);
                    in.close();
                }
                catch(Exception ex)
                {
                    ex.printStackTrace();
                }
            }

        });
        jchkRowSelectionAllowed.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                jTable1.setRowSelectionAllowed(jchkRowSelectionAllowed.isSelected());
            }

        });
        jchkColumnSelectionAllowed.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                jTable1.setColumnSelectionAllowed(jchkColumnSelectionAllowed.isSelected());
            }

        });
        jcboSelectionMode.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                String selectedItem = (String)jcboSelectionMode.getSelectedItem();

                if (selectedItem.equals("SINGLE_SELECTION"))
                    jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                else if (selectedItem.equals("SINGLE_INTERVAL_SELECTION"))
                    jTable1.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
                else if (selectedItem.equals("MULTIPLE_INTERVAL_SELECTION"))
                    jTable1.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
            }

        });

    }//end of default constructor

    private Vector getColumnNames()
    {
        Vector<String> theColumnNames = new Vector<>();

        for (int i = 0; i < jTable1.getColumnCount(); i++)
            theColumnNames.add(jTable1.getColumnName(i));

        return theColumnNames;
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        try
        {
            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
        }
        catch(Exception e)
        {

        }

        ModifyTable frame = new ModifyTable();
        frame.setLocationRelativeTo(null);  //Center the frame
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setTitle("TableSortFilter");
        frame.pack();
        //frame.setSize(new Dimension(300, 300));
        frame.setVisible(true);
    }
}

2 个答案:

答案 0 :(得分:1)

如果您希望更改表格内容,最好直接使用表格模型。创建自己的模型,做你想做的事。

请参阅http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#data

答案 1 :(得分:0)

这是最终的解决方案。 这个问题的最后一个答案(http://stackoverflow.com/questions/2668547/stackoverflowerror-being-caused-by-a-tablemodellistener)帮助了我很多:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package nysemarketpick;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Vector;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;

/**
 *
 * @author Administrator
 */
public class PortfolioForm extends javax.swing.JFrame {

    //Create table column names
    private String[] columnNames = {"Stock Symbol", "Stock Name", "Shares", "Price (in dollars)", "Total"};

    //Create table data
    private Object[][] rowData = {
        {null, null, null, null, null}
    };

    //Create a table model
    private MyTableModel myTableModel = new MyTableModel(rowData, columnNames);

    //Create a table
    private JTable jTable1 = new JTable(myTableModel);


    /**
     * Creates new form PortfolioForm
     */
    public PortfolioForm() {
        initComponents();
        add(new JScrollPane(jTable1), BorderLayout.CENTER);

        //Initialize table selection mode
        jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        //Allow row selection
        jTable1.setRowSelectionAllowed(true);

        //Load data
        loadData();

        //add listeners
        jbtAddRow.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                if (jTable1.getSelectedRow() >= 0)
                    myTableModel.insertRow(jTable1.getSelectedRow(), new Vector());
                else
                    myTableModel.addRow(new Vector());

            }

        });
        jbtDeleteRow.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                if ((jTable1.getSelectedRow() >= 0) && (myTableModel.getValueAt(jTable1.getSelectedRow(), 1) != null))
                {
                    System.out.println(myTableModel.getValueAt(jTable1.getSelectedRow(), 1));
                    myTableModel.removeRow(jTable1.getSelectedRow());
                }
            }

        });
        jbtSave.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                try
                {
                    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("portfolio.dat"));
                    out.writeObject(myTableModel.getDataVector());
                    out.writeObject(getColumnNames());
                    out.close();
                }
                catch(Exception ex)
                {
                    ex.printStackTrace();
                }

                disposeForm();
            }

        });
        jbtClear.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                myTableModel.setRowCount(0);
            }

        });
        jbtTotal.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                double sum = 0;
                int numberOfRows = myTableModel.getRowCount();
                for (int i = 0; i < numberOfRows; i++)
                {
                    sum = sum + (Double)myTableModel.getValueAt(i, 4);
                }
                jLabelTotal.setText(String.valueOf(sum));
            }

        });
        jbtTotals.addActionListener(new ActionListener(){

            @Override
            public void actionPerformed(ActionEvent e) {
                Double myDouble;
                for (int i = 0; i < myTableModel.getRowCount(); i++)
                {
                    myDouble = (Integer)myTableModel.getValueAt(i, 2) * (Double)myTableModel.getValueAt(i, 3);
                    myTableModel.setValueAt(myDouble, i, 4);
                }
            }

        });


        myTableModel.addTableModelListener(new TableModelListener(){

            @Override
            public void tableChanged(TableModelEvent e) {

                myTableModel.removeTableModelListener(this);
                if (myTableModel.getRowCount() > 0)
                {
                    if (e.getColumn() == 0)
                    {
                        Object data = myTableModel.getValueAt(e.getFirstRow(), e.getColumn());
                        String stockSymbol = (String)data;
                        XMLService2 myService = new XMLService2(stockSymbol);
                        String stockName = XMLService2.getStockName();
                        myTableModel.setValueAt(stockName, e.getFirstRow(), e.getColumn() + 1);
                    }

                }
                myTableModel.addTableModelListener(this);
            }

        });
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jPanel2 = new javax.swing.JPanel();
        jbtAddRow = new javax.swing.JButton();
        jbtDeleteRow = new javax.swing.JButton();
        jPanel3 = new javax.swing.JPanel();
        jbtSave = new javax.swing.JButton();
        jbtClear = new javax.swing.JButton();
        jPanel4 = new javax.swing.JPanel();
        jLabelTotal = new javax.swing.JLabel();
        jbtTotal = new javax.swing.JButton();
        jPanel5 = new javax.swing.JPanel();
        jbtTotals = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setSize(new java.awt.Dimension(600, 400));

        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("Row functions"));
        jPanel2.setLayout(new java.awt.GridLayout(2, 1));

        jbtAddRow.setText("Add New Row");
        jPanel2.add(jbtAddRow);

        jbtDeleteRow.setText("Delete Selected Row");
        jPanel2.add(jbtDeleteRow);

        jPanel1.add(jPanel2);

        jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder("Table functions"));
        jPanel3.setMinimumSize(new java.awt.Dimension(200, 111));
        jPanel3.setPreferredSize(new java.awt.Dimension(150, 100));
        jPanel3.setLayout(new java.awt.GridLayout(3, 1));

        jbtSave.setText("Save & Close");
        jPanel3.add(jbtSave);

        jbtClear.setText("Clear");
        jPanel3.add(jbtClear);

        jPanel1.add(jPanel3);

        jPanel4.setBorder(javax.swing.BorderFactory.createTitledBorder("Total Position"));
        jPanel4.setLayout(new java.awt.GridLayout(2, 1));

        jLabelTotal.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabelTotal.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        jPanel4.add(jLabelTotal);

        jbtTotal.setText("Calculate");
        jPanel4.add(jbtTotal);

        jPanel1.add(jPanel4);

        getContentPane().add(jPanel1, java.awt.BorderLayout.SOUTH);

        jbtTotals.setText("Calculate Totals");

        org.jdesktop.layout.GroupLayout jPanel5Layout = new org.jdesktop.layout.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(0, 145, Short.MAX_VALUE)
            .add(jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                .add(jPanel5Layout.createSequentialGroup()
                    .add(0, 0, Short.MAX_VALUE)
                    .add(jbtTotals)
                    .add(0, 0, Short.MAX_VALUE)))
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(0, 336, Short.MAX_VALUE)
            .add(jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                .add(jPanel5Layout.createSequentialGroup()
                    .add(0, 153, Short.MAX_VALUE)
                    .add(jbtTotals)
                    .add(0, 154, Short.MAX_VALUE)))
        );

        getContentPane().add(jPanel5, java.awt.BorderLayout.EAST);
    }// </editor-fold>

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(PortfolioForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                new PortfolioForm().setVisible(true);
            }
        });
    }

    //---Other methods
    private Vector getColumnNames()
    {
        Vector<String> columnNames = new Vector<String>();

        for (int i = 0; i < jTable1.getColumnCount(); i++)
            columnNames.add(jTable1.getColumnName(i));

        return columnNames;
    }

    private void disposeForm()
    {
        this.dispose();
    }

    private void loadData()
    {
        try
        {
            ObjectInputStream in = new ObjectInputStream(new FileInputStream("portfolio.dat"));
            Vector rows = (Vector)in.readObject();
            Vector columns = (Vector)in.readObject();
            myTableModel.setDataVector(rows, columns);
            in.close();
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
        }

    }
    // Variables declaration - do not modify
    private javax.swing.JLabel jLabelTotal;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JButton jbtAddRow;
    private javax.swing.JButton jbtClear;
    private javax.swing.JButton jbtDeleteRow;
    private javax.swing.JButton jbtSave;
    private javax.swing.JButton jbtTotal;
    private javax.swing.JButton jbtTotals;
    // End of variables declaration
}