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 Excel > JExcel API > How to Add Underline to Cells in Excel Spreadsheet

How to Add Underline to Cells in 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 underline to a Cell in Excel Spreadsheet.

File Name  :  
com/bethecoder/tutorials/jexcelapi/write/UnderlineCellFontTest.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.jexcelapi.write;

import java.io.File;
import java.io.IOException;

import jxl.Workbook;
import jxl.format.UnderlineStyle;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;

public class UnderlineCellFontTest {

  /**
   @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/ULCellFont.xls"));
    
    WritableSheet sheet = workbook.createSheet("My Sheet"0);
    
    // Create the label, specifying content and format
    Label label = new Label(12"ABC", getCellFormat(UnderlineStyle.SINGLE));
    Label label2 = new Label(14"ABC", getCellFormat(UnderlineStyle.SINGLE_ACCOUNTING));
    
    Label label3 = new Label(16"XYZ", getCellFormat(UnderlineStyle.DOUBLE));
    Label label4 = new Label(18"XYZ", getCellFormat(UnderlineStyle.DOUBLE_ACCOUNTING));
    
    sheet.addCell(label);
    sheet.addCell(label2)
    sheet.addCell(label3);
    sheet.addCell(label4);
    
    //Writes out the data held in this workbook in Excel format
    workbook.write()
    
    //Close and free allocated memory 
    workbook.close()
  }

  // Create cell font and format
  private static WritableCellFormat getCellFormat(
      UnderlineStyle underlineStylethrows WriteException {
    
    WritableFont cellFont = new WritableFont(WritableFont.TIMES, 16);
    WritableCellFormat cellFormat = new WritableCellFormat(cellFont);
    cellFont.setUnderlineStyle(underlineStyle);
    return cellFormat;
  }
}
   

It gives the following output,
sheet-underline.gif


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