Java Utililty Methods JTable Model

int destIndex = 0;
int lastSourceIndexNonEmpty = -1; 
int count = 0;
for (int sourceIndex = 0; sourceIndex < defaultTableModel.getRowCount(); sourceIndex++) {
    Object object = defaultTableModel.getValueAt(sourceIndex, 0);
    if (object != null) {
        String entry = object.toString().trim();
        entry = entry.trim();
...

for (int col = 0; col < table.getColumnCount(); col++) {
    if (table.getColumnModel().getColumn(col).getModelIndex() == modelIndex) {
        return col;
return -1;

int[] selected = table.getSelectedRows();
for (int i = 0; i < selected.length; i++) {
    selected[i] = table.convertRowIndexToModel(selected[i]);
return selected;

List<String> schedule = new Vector<String>();
StringBuilder builder = new StringBuilder();
int numCol = table.getColumnCount();
int numRow = table.getRowCount();
for (int i = 0; i < numCol; i++) {
    builder.append(table.getColumnName(i)).append(" ");
schedule.add(builder.toString());
...

try {
    PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(filename)));
    int nc = m.getColumnCount();
    int nr = m.getRowCount();
    StringBuffer buf = new StringBuffer(nc * 30);
    for (int i = 0; i < nc; i++) {
        buf.append("\t").append(m.getColumnName(i));
    writer.println(buf.toString());
    for (int i = 0; i < nr; i++) {
        for (int j = 0; j < nc; j++) {
            writer.print("\t");
            writer.print(m.getValueAt(i, j).toString());
        writer.println();
    writer.close();
} catch (IOException ioe) {
    System.err.println("Error " + ioe.getMessage() + "dumping table to text");

final int selection_view = table.getSelectedRow();
int selection_model_tmp = -1;
if (selection_view > -1) {
    selection_model_tmp = table.convertRowIndexToModel(selection_view);
final int selection_model = selection_model_tmp;
tableModel.fireTableDataChanged();
SwingUtilities.invokeLater(new Runnable() {
...

return new DefaultTableModel() {
    @Override
    public boolean isCellEditable(int row, int column) {
        return false;
};

int selectedRow = table.getSelectedRow();
if (selectedRow < 0) {
    return -1;
return rowToModelIndex(table, selectedRow);

int rowCount = table.getRowCount();
LinkedHashMap<String, String> result = new LinkedHashMap<>();
for (int row = 0; row < rowCount; row++) {
    String key = (String) table.getValueAt(row, 0);
    if (TextUtils.isEmpty(key))
        continue;
    String value = (String) table.getValueAt(row, 1);
    result.put(key, value);
...

if (!(model instanceof AbstractTableModel)) {
    model.addTableModelListener(l);
    return;
TableModelListener[] listeners = ((AbstractTableModel) model).getTableModelListeners();
for (TableModelListener listener : listeners) {
    model.removeTableModelListener(listener);
for (int i = 0; i < listeners.length; i++) {
    TableModelListener listener = listeners[i];
    if (index == i) {
        model.addTableModelListener(l);
    model.addTableModelListener(listener);
if ((index < 0) || (index > listeners.length - 1))
    model.addTableModelListener(l);