How to add cell validation in Java

EasyXLS Excel library can be used to export Excel files in Java. The library works with any Java SE application and without MS Excel installed.

Step 1: Download EasyXLS Excel Library for Java

To download the trial version of EasyXLS Excel Library, press the below button:

Download EasyXLS™ Excel Library for Java

If you already own a license key, you may login and download EasyXLS from your account.

Install the downloaded EasyXLS installer for v8.6 or earlier.

Step 2: License file setup

Step required for EasyXLS v9.0 or later.

If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.

If you own a license key, you may login to the account that purchased the license and generate the license file from:

Setup the license file into your project using these guidelines.

Step 3: Create a Java project

If don't have a project already, create a new Java project.

Step 4: Include EasyXLS library into project

EasyXLS.jar must be added to external libraries into your project for Eclipse or to your application CLASSPATH.

EasyXLS.jar can be found:
- Inside the downloaded archive at Step 1 for EasyXLS v9.0 or later
- Under installation path for EasyXLS v8.6 or earlier, in "Lib" folder.

Add EasyXLS library to CLASSPATH

Step 5: Run Java code that adds cell validation to Excel sheet

Execute the following Java code that exports an Excel file with two types of data validation defined: list and whole number.

package testexceljava;

import EasyXLS.*;
import EasyXLS.Constants.*;

/* --------------------------------------------------------------
 | Tutorial 13
 | This tutorial shows how to create an Excel file in Java having
 | multiple sheets. The second sheet contains a named area range.
 | The A1:A10 cell range contains data validators, drop down list
 | and whole number validation.
 * ------------------------------------------------------------ */

public class Tutorial13 {

    public static void main(String[] args) {
        try {
            System.out.println("Tutorial 13");

            // Create an instance of the class that exports Excel files, having two sheets
            ExcelDocument workbook = new ExcelDocument(2);

            // Set the sheet names
            workbook.easy_getSheetAt(0).setSheetName("First tab");
            workbook.easy_getSheetAt(1).setSheetName("Second tab");

            // Get the table of data for the second worksheet and populate the worksheet
            ExcelWorksheet xlsSecondTab = (ExcelWorksheet)workbook.easy_getSheetAt(1);
            ExcelTable xlsSecondTable = xlsSecondTab.easy_getExcelTable();
            xlsSecondTable.easy_getCell("A1").setValue("Range data 1");
            xlsSecondTable.easy_getCell("A2").setValue("Range data 2");
            xlsSecondTable.easy_getCell("A3").setValue("Range data 3");
            xlsSecondTable.easy_getCell("A4").setValue("Range data 4");

            // Create a named area range
            xlsSecondTab.easy_addName("Range", "=Second tab!$A$1:$A$4");

            // Add data validation as drop down list type
            ExcelWorksheet xlsFirstTab = (ExcelWorksheet)workbook.easy_getSheetAt(0);
            xlsFirstTab.easy_addDataValidator("A1:A10", DataValidator.VALIDATE_LIST, 
                                                        DataValidator.OPERATOR_EQUAL_TO, "=Range", "");

            // Add data validation as whole number type
            xlsFirstTab.easy_addDataValidator("B1:B10", DataValidator.VALIDATE_WHOLE_NUMBER, 
                                                        DataValidator.OPERATOR_BETWEEN, "=4", "=100");

            // Export Excel file
            System.out.println("Writing file: C:\\Samples\\Tutorial13 - cell validation in Excel.xlsx");
            workbook.easy_WriteXLSXFile("C:\\Samples\\Tutorial13 - cell validation in Excel.xlsx");

            // Confirm export of Excel file
            if (workbook.easy_getError().equals(""))
                System.out.println("File successfully created.");
                System.out.println("Error encountered: " + workbook.easy_getError());

            // Dispose memory
        catch (Exception ex) {

EasyXLS Excel libraries:

Excel Library for Java
full Java version to import, export or convert Excel files
Excel Writer for Java
Java version to create and export Excel files
Download EasyXLS™ Excel Library for Java

File formats:

MS Excel 97 - 2003
MS Excel 2007 - 2019
MS Excel 2021
Office 365