How to clear contents of a jTable ?

Question

I have a jTable and it\'s got a table model defined like this:

javax.swing.table.TableModel dataModel = 
     new javax.swing.table.DefaultTableModel(data, c         


        

Answer 1

If you mean to remove the content but its cells remain intact, then:

public static void clearTable(final JTable table) {
   for (int i = 0; i < table.getRowCount(); i++) {
      for(int j = 0; j < table.getColumnCount(); j++) {
          table.setValueAt("", i, j);
      }
   }
}

OK, if you mean to remove all the cells but maintain its headers:

public static void deleteAllRows(final DefaultTableModel model) {
    for( int i = model.getRowCount() - 1; i >= 0; i-- ) {
        model.removeRow(i);
    }
}

Answer 2

    //To clear the Contents of Java JTable

    DefaultTableModel dm = (DefaultTableModel) JTable1.getModel();

    for (int i = 0; i < dm.getRowCount(); i++) {
        for (int j = 0; j < dm.getColumnCount(); j++) {
            dm.setValueAt("", i, j);
        }
    }