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 Excel > JExcel API > How to read different Cell Data types

How to read different Cell Data types 

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 read the contents of different Cell Data types.

data-types.gif

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

import java.io.File;
import java.io.IOException;
import java.util.Date;

import jxl.BooleanFormulaCell;
import jxl.Cell;
import jxl.CellType;
import jxl.DateCell;
import jxl.LabelCell;
import jxl.NumberCell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class GetDataTypesTest {

  /**
   @param args
   @throws IOException 
   @throws BiffException 
   */
  public static void main(String[] argsthrows BiffException, IOException {
    Workbook workbook = Workbook.getWorkbook(new File("C:/JXL/DataTypes.xls"));
    Sheet firstSheet = workbook.getSheet(0)
    
    Cell a1 = firstSheet.getCell(0,0)//String cell
    Cell a2 = firstSheet.getCell(1,0)//Number cell
    Cell a3 = firstSheet.getCell(2,0)//Boolean function cell
    Cell a4 = firstSheet.getCell(3,0)//Date cell

    printCell(a1);
    printCell(a2);
    printCell(a3);
    printCell(a4);
    
    //Close and free allocated memory 
    workbook.close()
    
  }
  
  private static void printCell(Cell cell) {
    
    System.out.print("Cell[" + cell.getRow() "-row, " + cell.getColumn() "-col] : ");
    
    if (cell.getType() == CellType.LABEL) {
      
      LabelCell labelCell = (LabelCellcell;
      String str = labelCell.getString();
      
      System.out.println(str);
      
    else if (cell.getType() == CellType.NUMBER) {
      
      NumberCell numCell = (NumberCellcell;
      double num = numCell.getValue();
      
      System.out.println(num);
      
    else if (cell.getType() == CellType.DATE) {
      
      DateCell dateCell = (DateCellcell;
      Date date = dateCell.getDate();
      
      System.out.println(date);
      
    else if (cell.getType() == CellType.BOOLEAN_FORMULA) {
      
      BooleanFormulaCell boolFormulaCell = (BooleanFormulaCellcell;
      boolean value = boolFormulaCell.getValue();
      
      System.out.println(value);
    }
    
  }

}
   

It gives the following output,
Cell[0-row, 0-col] : My String
Cell[0-row, 1-col] : 123456.789
Cell[0-row, 2-col] : true
Cell[0-row, 3-col] : Sun May 06 05:30:00 IST 2012


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