public void showColumn(int modelColumn){
  for (  TableColumn column : allColumns) {
    if (column.getModelIndex() == modelColumn) {
      showColumn(column);
      break;
    }
  }
}

public void showColumn ( int modelColumn ) { for ( TableColumn column : allColumns ) { if ( column . getModelIndex ( ) == modelColumn ) { showColumn ( column ) ; break ; } } }
show a hidden column in the table .
