Java - Creating an MS Excel File using Jakarta POI api

	import java.io.FileNotFoundException;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import org.apache.poi.hssf.usermodel.HSSFCell;
	import org.apache.poi.hssf.usermodel.HSSFRow;
	import org.apache.poi.hssf.usermodel.HSSFSheet;
	import org.apache.poi.hssf.usermodel.HSSFWorkbook;


	/**
	 *
	 * @author dhanoopbhaskar
	 */
	public class CreateXLFile {
	   
	    HSSFWorkbook xlWorkbook = null;
	    HSSFSheet xlSheet = null;
	    HSSFRow xlRow = null;
	    HSSFCell xlCell = null;
	    FileOutputStream xlFileOutputStream = null;
	   
	    public CreateXLFile() {
	        /**
	         * creating a new MS Excel work book
	         */
	        xlWorkbook = new HSSFWorkbook();
	        /**
	         * creating a new sheet named "my first sheet" in the above created
	         * work book
	         */
	        xlSheet = xlWorkbook.createSheet("my first sheet");
	        /**
	         * creating a new row at index 0 in the new sheet
	         */
	        xlRow = xlSheet.createRow(0);
	        /**
	         * creating a new cell/column in the row 0
	         * the index required is of type short and so it has been type casted
	         * to short
	         */
	        xlCell = xlRow.createCell((short) 0);
	        /**
	         * setting the type of data that can be accommodated in the cell
	         * CELL_TYPE_STRING is a public static final int variable in the class
	         * HSSFCell.
	         */
	        xlCell.setCellType(HSSFCell.CELL_TYPE_STRING);
	        /**
	         * setting the content of the cell as "The Insane Techie"
	         */
	        xlCell.setCellValue("The Insane Techie");
	        /**
	         * The so created instance of HSSFWorkbook is converted to a file using
	         * the method write() in HSSFWorkbook.class passing the file output stream
	         * of the file as the parameter.
	         */
	        try {
	            xlFileOutputStream = new FileOutputStream("myexcelfile.xls");           
	            xlWorkbook.write(xlFileOutputStream);           
	            /**
	             * Note: I couldn't find the need to flush and close the stream,
	             * that we usually do. So it can be concluded that the API provider
	             * performs the task already.
	             *
	             * xlFileOutputStream.flush();
	             * xlFileOutputStream.close();
	             */           
	            System.out.println("Your First Excel File has been successfully created!");
	        } catch (FileNotFoundException ex) {
	            System.out.println(ex.getMessage());
	        } catch (IOException ex) {
	            System.out.println(ex.getMessage());
	        }       
	    }
	   
	    public static void main(String[] args) {
	        new CreateXLFile();
	    }
	}