BE THE CODER > Excel > Java Excel API Examples > How to add Now Formula to Excel Spreadsheet

Java Excel API is an open source java library to read, write and modify Excel spread sheets. This requires the library jxl-2.6.12.jar to be in classpath. The following example shows how to add now formula to a Cell in Excel Spreadsheet.

File Name :	com/bethecoder/tutorials/jexcelapi/write/NowFormulaTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.jexcelapi.write;



import java.io.File;

import java.io.IOException;



import jxl.Workbook;

import jxl.format.Alignment;

import jxl.format.Border;

import jxl.format.BorderLineStyle;

import jxl.read.biff.BiffException;

import jxl.write.DateFormats;

import jxl.write.Formula;

import jxl.write.WritableCellFormat;

import jxl.write.WritableSheet;

import jxl.write.WritableWorkbook;

import jxl.write.WriteException;



public class NowFormulaTest {



  /**

   * @param args

   * @throws IOException 

   * @throws IOException 

   * @throws WriteException 

   * @throws BiffException 

   */

  public static void main(String[] args) throws IOException, WriteException {

    //Creates a writable workbook with the given file name

    WritableWorkbook workbook = Workbook.createWorkbook(new File("C:/JXL/NOWFormula.xls"));



    WritableSheet sheet = workbook.createSheet("My Sheet", 0);



      WritableCellFormat dateFormat = new WritableCellFormat(DateFormats.FORMAT9);

      dateFormat.setAlignment(Alignment.LEFT);

      dateFormat.setBorder(Border.ALL, BorderLineStyle.THIN);

      

    Formula formulaCell = new Formula(1, 1, "NOW()", dateFormat);

    sheet.addCell(formulaCell);

    

    formulaCell = new Formula(1, 2, "NOW()", dateFormat);

    sheet.addCell(formulaCell);

    

    formulaCell = new Formula(1, 3, "NOW()", dateFormat);

    sheet.addCell(formulaCell);

    

    formulaCell = new Formula(1, 4, "NOW()", dateFormat);

    sheet.addCell(formulaCell);

    

    //Writes out the data held in this workbook in Excel format

    workbook.write(); 



    //Close and free allocated memory 

    workbook.close(); 

  }



}