How to print the whole row of an excel sheet after finding a specific string from that row?

This is the code I am using to find the specific string in an excel sheet.

   FileInputStream fis = new FileInputStream( new File("D:\\excel_file.xlsx"));

   workbook = new XSSFWorkbook(fis);

   for (int i = 0; i < workbook.getNumberOfSheets(); i++) {


       XSSFSheet spreadsheet = workbook.getSheetAt(i);

       Iterator < Row > rowIterator = spreadsheet.iterator();
       while (rowIterator.hasNext()) 
    {
        row = (XSSFRow) rowIterator.next();
     Iterator < Cell > cellIterator = row.cellIterator();
     while ( cellIterator.hasNext()) 
     {
        Cell cell = cellIterator.next();

      String test_string="search_phrase";
      if(cell.getCellType()==Cell.CELL_TYPE_STRING){
      if(test_string.trim().equalsIgnoreCase(cell.getStringCellValue().trim()))
          {     
              flag=1;           

             rowNum=row.getRowNum();
             System.out.println("found");



          }


        }

     }

     fis.close();
     workbook.close();
      }

     }
    if(flag==0)
     { System.out.println("not found");

     }}

I can also get the row number easily, but using that row number I am not able to figure out how to get all the cells in that row. Please help. Thanks.