com.mum.processexceldata.ReadExcel.java Source code

Introduction

Here is the source code for com.mum.processexceldata.ReadExcel.java

Source

/*
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 */
package com.mum.processexceldata;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Iterator;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;

/**
 *
 * @author demodem
 */
public class ReadExcel {

    public static void main(String args[]) {
        try {
            FileInputStream file = new FileInputStream(
                    new File("C:\\Users\\demodem\\Downloads\\Calling_Codes.xls"));
            System.out.println("File:" + file);
            // HSSFWorkbook book = new HSSFWorkbook(file);

            //Get the workbook instance for XLS file 
            HSSFWorkbook workbook = new HSSFWorkbook(file);

            //Get first sheet from the workbook
            HSSFSheet sheet = workbook.getSheetAt(0);
            //System.out.println("sheet    :"+sheet);
            //Iterate through each rows from first sheet
            Iterator<Row> rowIterator = sheet.iterator();
            while (rowIterator.hasNext()) {
                Row row = rowIterator.next();

                //For each row, iterate through each columns
                Iterator<Cell> cellIterator = row.cellIterator();
                while (cellIterator.hasNext()) {

                    Cell cell = cellIterator.next();
                    switch (cell.getCellType()) {
                    case Cell.CELL_TYPE_BOOLEAN:
                        System.out.print(cell.getBooleanCellValue() + "\t\t");
                        break;
                    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();
            FileOutputStream out = new FileOutputStream(new File("C:\\Users\\demodem\\Downloads\\test.xls"));
            workbook.write(out);
            out.close();

        } catch (Exception e) {
            System.out.println("Error in reading the file.");
        }
    }

}