[RESOLVIDO]Escrever no excel

import java.io.File;
import java.io.IOException;
import javax.swing.JOptionPane;
import jxl.Workbook;
import jxl.write.Number;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;

public class GeradorPlanilha {
    private WritableWorkbook workbook;
    private WritableSheet sheet;

    public GeradorPlanilha(String arquivo){
        try{
            workbook = Workbook.createWorkbook(new File(arquivo));

        }
        catch(IOException ioe){
            JOptionPane.showMessageDialog(null, "Erro ao criar planilha com resultado da crítica", "Falha de Operação", JOptionPane.ERROR_MESSAGE);
        }
    }

    public void criaPlanilha(String nome, int posicao){
        sheet = workbook.createSheet(nome, posicao);
    }

    public void adicionaCabecalho(String rotulos[], int linha){
        for(int i=0; i<rotulos.length; i++){
            Label label = new Label(i, linha, rotulos[i]);
            try{
                sheet.addCell(label);
            }
            catch(WriteException we){
                JOptionPane.showMessageDialog(null, "Erro ao escrever cabeçalho da planilha", "Falha de Operação", JOptionPane.ERROR_MESSAGE);
            }
        }
    }

    public void adicionaLinha(Object dados[], int linha){
        for(int i=0; i<dados.length; i++){
            if(i < 4){
                Label label = new Label(i, linha, dados[i].toString());
                try{
                    sheet.addCell(label);
                }
                catch(WriteException we){
                    JOptionPane.showMessageDialog(null, "Erro ao escrever linha na planilha", "Falha de Operacao", JOptionPane.ERROR_MESSAGE);
                }
            }
            else{
                Number number = new Number(i,linha, Double.valueOf(dados[i].toString()));
                try{
                    sheet.addCell(number);
                }
                catch(WriteException we){
                    JOptionPane.showMessageDialog(null, "Erro ao escrever linha na planilha", "Falha de Operacao", JOptionPane.ERROR_MESSAGE);
                }
            }
        }
    }
    
    public void encerraPlanilha(){
        try{
            workbook.write();

        }
        catch(IOException ioe){
            JOptionPane.showMessageDialog(null, "Erro ao escrever dados na planilha", "Falha de Operação", JOptionPane.ERROR_MESSAGE);
        }
        try{
            workbook.close();
        }
        catch(IOException ioe){
            JOptionPane.showMessageDialog(null, "Erro ao fechar a planilha", "Falha de Operação", JOptionPane.ERROR_MESSAGE);
        }
        catch(WriteException we){
            JOptionPane.showMessageDialog(null, "Erro ao fechar a planilha", "Falha de Operação", JOptionPane.ERROR_MESSAGE);
        }
    }

}

import java.io.File;
import java.util.Locale;

import jxl.Workbook;
import jxl.WorkbookSettings;
import jxl.write.NumberFormats;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.Number;
//import jxl.write.*;
import jxl.write.Label;

public class PraEscrever {
	
	public PraEscrever() {
		try {
			String filename = "/home/acene/Documentos/entrada1po.xls";
		      WorkbookSettings ws = new WorkbookSettings();
		      ws.setLocale(new Locale("en", "EN"));
		      WritableWorkbook workbook = Workbook.createWorkbook(new File(filename), ws);
		      WritableSheet s = workbook.createSheet("Folha1", 0);
 
		     for(int i=0;i<10;i++){
		    	 System.out.println("kdshfjklds");
		    	 WritableCellFormat cf2 = new WritableCellFormat();
			      Label label = new Label(5,i, "OK", cf2);
		      s.addCell(label);
		      
		     }

		      
		      workbook.write();
		      workbook.close();
		      
		} catch (Exception e) {
			// TODO: handle exception
		}
		
	

	}

}