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 Excel > JExcel API > How to Add Number Validation to Excel Cells

How to Add Number Validation to Excel Cells 

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 number validations to Cells in Excel Spread sheet.

File Name  :  
Author  :  Sudhakar KV
Email  :  [email protected]
package com.bethecoder.tutorials.jexcelapi.write;


import jxl.Workbook;
import jxl.write.Blank;
import jxl.write.WritableCellFeatures;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;

public class NumberValidationTest {

   @param args
   @throws IOException 
   @throws IOException 
   @throws WriteException 
   @throws BiffException 
  public static void main(String[] argsthrows IOException, WriteException {
    //Creates a writable workbook with the given file name
    WritableWorkbook workbook = Workbook.createWorkbook(new File("C:/JXL/Num-validations.xls"));
    WritableSheet sheet = workbook.createSheet("My Sheet"0);
    //Add a Blank cell with number validation
    Blank blankCell = new Blank(00);
    //Throws an error when entered number is less or equal to 101.5
    WritableCellFeatures cellFeatures = new WritableCellFeatures();
    cellFeatures.setNumberValidation(101.5, WritableCellFeatures.GREATER_THAN);
    blankCell = new Blank(10);
    //Throws an error when entered number is greater or equal to 101.5
    cellFeatures = new WritableCellFeatures();
    cellFeatures.setNumberValidation(101.5, WritableCellFeatures.LESS_THAN);
    //Writes out the data held in this workbook in Excel format
    //Close and free allocated memory 


It gives the following output,


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