How to read Excel sheet by java code

package com.ashish;

import java.io.File;
import java.io.FileInputStream;
import java.util.Iterator;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ReadExcelDemo
{
    public static void main(String[] args)
    {
        try
        {
            FileInputStream file = new FileInputStream(new File("D:/ashu.xlsx"));
            //System.out.println("0 place");
            //Create Workbook instance holding reference to .xlsx file
            //XSSFWorkbook workbook = new XSSFWorkbook(file);
            org.apache.poi.ss.usermodel.Workbook workbook = WorkbookFactory.create(file);
           // System.out.println("-1 place");
            //Get first/desired sheet from the workbook
          //  XSSFSheet sheet = workbook.getSheetAt(0);
            org.apache.poi.ss.usermodel.Sheet sheet = workbook.getSheetAt(0);
          //  System.out.println("-2 place");
            //Iterate through each rows one by one
            Iterator<Row> rowIterator = sheet.iterator();
           // System.out.println("1 place");
            while (rowIterator.hasNext())
            {//System.out.println("2 place");
                Row row = rowIterator.next();
                //For each row, iterate through all the columns
                Iterator<Cell> cellIterator = row.cellIterator();
               
                while (cellIterator.hasNext())
                {
                    Cell cell = cellIterator.next();
                //    System.out.println("3 place");
                    //Check the cell type and format accordingly
                    switch (cell.getCellType())
                    {
                        case Cell.CELL_TYPE_NUMERIC:
                            System.out.print(cell.getNumericCellValue() + "\t\t");
                            break;
                        case Cell.CELL_TYPE_STRING:
                            System.out.print(cell.getStringCellValue() + "\t\t");
                            break;
                    }
                }
                System.out.println("");
            }
            file.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}
you need follwoing jar file  POI download page

• dom4j-1.6.1.jar
• poi-3.9-20121203.jar
• poi-ooxml-3.9-20121203.jar
• poi-ooxml-schemas-3.9-20121203.jar
• xmlbeans-2.3.0.jar

You can track the error if arise ...to below link...

http://stackoverflow.com/questions/11145323/error-reading-excel-xlsx-with-apache-poi?rq=1