code: public Column getColumn(String name) {
          for (Column column : columns) {
              if (column.getName().equals(name)) {
                  return column;
              }
          }
          return null;
      }
docs: Returns the {@link Column} identified by the specified name, or {@code null} if not found.
  
  @param name The name of the {@link Column} to be returned.
  @return The {@link Column} identified by the specified name, or {@code null} if not found.