@Override public Class getColumnClass(int col) { if (getRowCount() == 0) return Object.class; Object aux = getValueAt(0, col); return aux == null ? Object.class : aux.getClass(); }
@Override public Class getColumnClass(int col) { if (getRowCount() == 0) return Object.class; Object aux = getValueAt(0, col); return aux == null ? Object.class : aux.getClass(); }