Stocks data Table: illustrate the TableModel : Table Model « Swing JFC « Java

Stocks data Table: illustrate the TableModel

Stocks data Table: illustrate the TableModel
Swing, Second Edition
by Matthew Robinson, Pavel Vorobiev

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableColumn;

public class StocksTable extends JFrame {
  protected JTable m_table;

  protected StockTableData m_data;

  protected JLabel m_title;

  public StocksTable() {
    super("Stocks Table");
    setSize(600, 300);

    m_data = new StockTableData();

    m_title = new JLabel(m_data.getTitle(), new ImageIcon("money.gif"),
    m_title.setFont(new Font("TimesRoman", Font.BOLD, 24));
    getContentPane().add(m_title, BorderLayout.NORTH);

    m_table = new JTable();

    for (int k = 0; k < StockTableData.m_columns.length; k++) {
      DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
      TableColumn column = new TableColumn(k,
          StockTableData.m_columns[k].m_width, renderer, null);

    JTableHeader header = m_table.getTableHeader();

    JScrollPane ps = new JScrollPane();
    getContentPane().add(ps, BorderLayout.CENTER);

    WindowListener wndCloser = new WindowAdapter() {
      public void windowClosing(WindowEvent e) {

  public static void main(String argv[]) {
    new StocksTable();

class StockData {
  public String m_symbol;

  public String m_name;

  public Double m_last;

  public Double m_open;

  public Double m_change;

  public Double m_changePr;

  public Long m_volume;

  public StockData(String symbol, String name, double last, double open,
      double change, double changePr, long volume) {
    m_symbol = symbol;
    m_name = name;
    m_last = new Double(last);
    m_open = new Double(open);
    m_change = new Double(change);
    m_changePr = new Double(changePr);
    m_volume = new Long(volume);

class ColumnData {
  public String m_title;

  public int m_width;

  public int m_alignment;

  public ColumnData(String title, int width, int alignment) {
    m_title = title;
    m_width = width;
    m_alignment = alignment;

class StockTableData extends AbstractTableModel {
  static final public ColumnData m_columns[] = {
      new ColumnData("Symbol", 100, JLabel.LEFT),
      new ColumnData("Name", 160, JLabel.LEFT),
      new ColumnData("Last", 100, JLabel.RIGHT),
      new ColumnData("Open", 100, JLabel.RIGHT),
      new ColumnData("Change", 100, JLabel.RIGHT),
      new ColumnData("Change %", 100, JLabel.RIGHT),
      new ColumnData("Volume", 100, JLabel.RIGHT) };

  protected SimpleDateFormat m_frm;

  protected Vector m_vector;

  protected Date m_date;

  public StockTableData() {
    m_frm = new SimpleDateFormat("MM/dd/yyyy");
    m_vector = new Vector();

  public void setDefaultData() {
    try {
      m_date = m_frm.parse("4/6/1999");
    } catch (java.text.ParseException ex) {
      m_date = null;

    m_vector.addElement(new StockData("ORCL", "Oracle Corp.", 23.6875,
        25.375, -1.6875, -6.42, 24976600));
    m_vector.addElement(new StockData("EGGS", "", 17.25,
        17.4375, -0.1875, -1.43, 2146400));
    m_vector.addElement(new StockData("T", "AT&T", 65.1875, 66, -0.8125,
        -0.10, 554000));
    m_vector.addElement(new StockData("LU", "Lucent Technology", 64.625,
        59.9375, 4.6875, 9.65, 29856300));
    m_vector.addElement(new StockData("FON", "Sprint", 104.5625, 106.375,
        -1.8125, -1.82, 1135100));
    m_vector.addElement(new StockData("ENML", "Enamelon Inc.", 4.875, 5,
        -0.125, 0, 35900));
    m_vector.addElement(new StockData("CPQ", "Compaq Computers", 30.875,
        31.25, -0.375, -2.18, 11853900));
    m_vector.addElement(new StockData("MSFT", "Microsoft Corp.", 94.0625,
        95.1875, -1.125, -0.92, 19836900));
    m_vector.addElement(new StockData("DELL", "Dell Computers", 46.1875,
        44.5, 1.6875, 6.24, 47310000));
    m_vector.addElement(new StockData("SUNW", "Sun Microsystems", 140.625,
        130.9375, 10, 10.625, 17734600));
    m_vector.addElement(new StockData("IBM", "Intl. Bus. Machines", 183,
        183.125, -0.125, -0.51, 4371400));
    m_vector.addElement(new StockData("HWP", "Hewlett-Packard", 70,
        71.0625, -1.4375, -2.01, 2410700));
    m_vector.addElement(new StockData("UIS", "Unisys Corp.", 28.25, 29,
        -0.75, -2.59, 2576200));
    m_vector.addElement(new StockData("SNE", "Sony Corp.", 96.1875, 95.625,
        1.125, 1.18, 330600));
    m_vector.addElement(new StockData("NOVL", "Novell Inc.", 24.0625,
        24.375, -0.3125, -3.02, 6047900));
    m_vector.addElement(new StockData("HIT", "Hitachi, Ltd.", 78.5, 77.625,
        0.875, 1.12, 49400));

  public int getRowCount() {
    return m_vector == null ? 0 : m_vector.size();

  public int getColumnCount() {
    return m_columns.length;

  public String getColumnName(int column) {
    return m_columns[column].m_title;

  public boolean isCellEditable(int nRow, int nCol) {
    return false;

  public Object getValueAt(int nRow, int nCol) {
    if (nRow < 0 || nRow >= getRowCount())
      return "";
    StockData row = (StockData) m_vector.elementAt(nRow);
    switch (nCol) {
    case 0:
      return row.m_symbol;
    case 1:
      return row.m_name;
    case 2:
      return row.m_last;
    case 3:
      return row.m_open;
    case 4:
      return row.m_change;
    case 5:
      return row.m_changePr;
    case 6:
      return row.m_volume;
    return "";

  public String getTitle() {
    if (m_date == null)
      return "Stock Quotes";
    return "Stock Quotes at " + m_frm.format(m_date);


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