problem formatting fields in a JTable - differences between Integer and Double

Question

Update

Confirmed as a bug on JTable can\'t format given Object as Number when columnClass is Double (bug ID: 7051636). Feel free to vote for it, or if if you have

Answer 1

reall problem is noting to do with previous debate, there is plain vanilla (compare my missing English skills), are you think that that's really Bug, or if I showed ViceVersaView, maybe then somone can be able to comment that chains for JTable + TableModel + Comparator (TableRowSorter for JTable API) in English language, eeeeeerghhh really my bad in this case

import java.awt.*;
import java.awt.event.*;
import java.util.Date;
import javax.swing.*;
import javax.swing.table.*;

public class ViceVersaBugFromTableModelAndComparator {

    private String[] columnNames = {"String", "Integer", "Boolean", "Double", "Date"};
    private Object[][] data = {
        {"aaa", 12, true, .15, new Date()},
        {"bbb", 5, false, 100.01, new Date()},
        {"CCC", 92, true, 15.2, new Date()},
        {"DDD", 0, false, 10.80, new Date()},
        {"abc", 5, true, 4.11, new Date()},
        {"bae", 31, false, 100.01, new Date()},
        {"CAX", 27, true, 2.3, new Date()},
        {"AXD", 4, false, 50.00, new Date()},
        {"abc", 3, true, 1.5, new Date()},
        {"bae", 5, false, 1000, new Date()}, //java.lang.ClassCastException: java.lang.Double cannot be cast to java.lang.String
        //{"bae", 5, false, 1000.0, new Date()}, //un-comment for correctness
        {"CAX", 2, true, 21.7, new Date()},
        {"AXD", 2, false, 5.30, new Date()}
    };
    private TableModel model = new DefaultTableModel(data, columnNames) {

        private static final long serialVersionUID = 1L;

        @Override
        public Class getColumnClass(int column) {
            return String.class;// again java.lang.ClassCastException 
            //return getValueAt(0, column).getClass(); //un-comment for correctness
        }
    };
    private JTable table = new JTable(model);
    private JTableHeader header;

    static class TestTableRowSorter extends TableRowSorter {

        public TestTableRowSorter(TableModel m) {
            super(m);
        }

        @Override
        public void toggleSortOrder(int column) {
        }

        public void wrapToggleSortOrder(int column) {
            super.toggleSortOrder(column);
        }
    }
    private Timer timer = new Timer(400, new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            System.out.println("single");
            JTable table = header.getTable();
            RowSorter sorter;
            if (pt != null && table != null && (sorter = table.getRowSorter()) != null) {
                int columnIndex = header.columnAtPoint(pt);
                if (columnIndex != -1) {
                    columnIndex = table.convertColumnIndexToModel(columnIndex);
                    ((TestTableRowSorter) sorter).wrapToggleSortOrder(columnIndex);
                }
            }
        }
    });
    private Point pt;

    public JComponent makeUI() {
        timer.setRepeats(false);
        table.setRowSorter(new TestTableRowSorter(model));
        header = table.getTableHeader();
        header.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseClicked(final MouseEvent e) {
                if (timer.isRunning() && !e.isConsumed() && e.getClickCount() > 1) {
                    System.out.println("double");
                    pt = null;
                    timer.stop();
                } else {
                    pt = e.getPoint();
                    timer.restart();
                }
            }
        });
        JPanel p = new JPanel(new BorderLayout());
        p.add(new JScrollPane(table));
        return p;
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                createAndShowGUI();
            }
        });
    }

    public static void createAndShowGUI() {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        f.getContentPane().add(new ViceVersaBugFromTableModelAndComparator().makeUI());
        f.setSize(820, 240);
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }
}