How to Retrieve JTable Data as an Array

Question

I\'ve populated a JTable through a DefaultTableModel with the (Object[][] data, String[] headers) constructor. Users can edit the table, and I want

Answer 1

I'd like to suggest a small improvement on Manidip Sengupta's answer. Rather than casting table.getModel() to the appropriate class, it is better to simply work with TableModel. This makes the code more re-usable too (it doesn't matter which implementation of TableModel is actually being worked with).

public Object[][] getTableData (JTable table) {
    TableModel dtm = table.getModel();
    int nRow = dtm.getRowCount(), nCol = dtm.getColumnCount();
    Object[][] tableData = new Object[nRow][nCol];
    for (int i = 0 ; i < nRow ; i++)
        for (int j = 0 ; j < nCol ; j++)
            tableData[i][j] = dtm.getValueAt(i,j);
    return tableData;
}