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Merging two cells

                         

In this program we are going to merge two cells of an excel sheet through java program .You can merge any number of cells.

The package we need to import is 
java.io.*,java.util.* ,
org.apache.poi.hssf.usermodel.HSSFSheet,
org.apache.poi. hssf.  usermodel. HSSFCellStyle, 
org.apache.poi.usermodel.HSSFRow, 
org.apache.poi.usermodel.HSSFCell
,
org.apache.poi.hssf.usermodel. HSSFWorkbook 
and
org.apache.poi.hssf.util.Region.

org.apache.poi.hssf.util.Region class is used to create an object of region. This class provides a method for adding the region. Region class is defined public and it extends the java.lang.Object .The Region class implements java.lang.Compareble and represents a form/to row/column square.

In this example, we are using following key points:

addMergedRegion(Region
r):
This method is used to merge the region which is passed as argument into this method.

In this example, we are merging the two cells into a single cell. In this example, Region(1,(short)1,1,(short)2) represents as Region(int rowFrom, short colFrom, int rowTo, short colTo). Here the rowFrom, colFrom, rowTo and colTo is used to define the region to merge. 

The code of the program is given below :

<%page import="org.apache.poi.hssf.usermodel.HSSFSheet"%>
<%page import="org.apache.poi.hssf.usermodel.HSSFWorkbook"%>
<%page import="org.apache.poi.hssf.usermodel.HSSFRow"%>
<%page import="org.apache.poi.hssf.usermodel.HSSFCell"%>
<%page import="org.apache.poi.hssf.usermodel.HSSFCellStyle"%>
<%page import="org.apache.poi.hssf.util.Region"%>
<%page contentType="application/vnd.ms-excel" %>
<%page import="java.io.*" %>
<%page import="java.util.*" %>
<% try{
   HSSFWorkbook hwb = new HSSFWorkbook();
   HSSFSheet sheet = hwb.createSheet("new sheet");
   HSSFRow row = sheet.createRow((short1);
   HSSFCell cell = row.createCell((short1);
   cell.setCellValue("rajesh");
   sheet.addMergedRegion(new Region(1,(short)1,1,(short)2));
   FileOutputStream fileOut = new FileOutputStream
(
"c:\\excel\\mergingExcel.xls");
   hwb.write(fileOut);
   fileOut.close();
   out.println("Your excel file has been generated");
       catch Exception ex ) {
     }
%>

The output of the program is given below:

Download this example.

                         

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