code: protected Content getClassName(Content classStr) {
          Content table = HtmlTree.TABLE(HtmlStyle.constantsSummary, 0, 3, 0, constantsTableSummary,
                  getTableCaption(classStr));
          table.addContent(getSummaryTableHeader(constantsTableHeader, "col"));
          return table;
      }
docs: Get the class name in the table caption and the table header.
  
  @param classStr the class name to print.
  @return the table caption and header