s'il vous plait je n'arrive pas à stocker les informations dans la chaine des idées
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import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Iterator;
 
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.hssf.usermodel.HSSFCell;
public class Readxls {
 
public static void main(String[] args)  {
 
	try {
 
	    InputStream input=new FileInputStream("tes.xls");
	    HSSFWorkbook wb = new HSSFWorkbook(input);
 
	    HSSFSheet sheet = wb.getSheetAt(0);
 
	    Iterator<Row> rowIterator = (sheet).rowIterator();
	    while(rowIterator.hasNext()) {
	        HSSFRow row = (HSSFRow) rowIterator.next();
 
	        Iterator<Cell> cellIterator = row.cellIterator();
	        while(cellIterator.hasNext()) {
 
	            HSSFCell cell = (HSSFCell) cellIterator.next();
	            String[] values = new String[row.getPhysicalNumberOfCells()];
 
	             int i=0,j=0 ;
	            switch(cell.getCellType()) {
	                case Cell.CELL_TYPE_BOOLEAN:
	                    System.out.print(cell.getBooleanCellValue() + ";");
	                    break;
	                case Cell.CELL_TYPE_NUMERIC:
	                   // System.out.print(cell.getNumericCellValue() + ";");
	                    values[i++]=Integer.toString((int) cell.getNumericCellValue());
	                    System.out.print(values);
	                    break;
	                case Cell.CELL_TYPE_STRING:
	                   // System.out.print(cell.getStringCellValue() + ";");
	                   values[i++] = cell.getStringCellValue();
	                   System.out.print(values);
	                    break;
	            } 
	        } 
	        System.out.println("");
	    }
 
 
 
	} catch (FileNotFoundException e) {
	    e.printStackTrace();
	} catch (IOException e) {
	    e.printStackTrace();
	}}}