import javax.microedition.rms.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;

public class ExampleSearch
{

private RecordStore recordstore = null;
private RecordEnumeration recordEnum= null;
private Filter filter = null;

// get the record store
public void getRecStore(){
recordstore= RecordStore.openRecordStore(“myRec”,true);
}
//
public boolean login(String userName,String password){
getRecStore();
filter = new Filter(userName+”#”+password); // create a filter on the search text
recordEnum= recordstore.enumerateRecords(filter, null, false);
if (recordEnum.numRecords() > 0)
{
return true;
}else{
return false;
}
}

}

/*
*    This class is used as a filter for this example which is exetnding the RecordFilter
*
*
*/
class Filter implements RecordFilter{
private String search = null;
private ByteArrayInputStream inputstream = null;
private DataInputStream datainputstream = null;
public Filter(String search)
{
this.search = search.toLowerCase();
}
public boolean matches(byte[] suspect)
{
String string = new String(suspect).toLowerCase();
if (string!= null && string.indexOf(search) != -1)
return true;
else
return false;
}
public void filterClose()
{
try
{
if (inputstream != null)
{
inputstream.close();
}
if (datainputstream != null)
{
datainputstream.close();
}
}
catch ( Exception error)
{
}
}
}

<?xml version="1.0"   ?>
<!DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" 
    "http://jasperreports.sourceforge.net/dtds/jasperreport.dtd">

<jasperReport name="200">
    <detail>
        <band height="200">
            <staticText>
                    <reportElement x="0" y="0" width="500" height="20"/>
                    <text><![CDATA[Informe ¡Hola Mundo!]]></text>
            </staticText>
        </band>
    </detail>
</jasperReport>

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        String reportSource="./reports/templates/HolaMundo.jrxml";
	String reportDest="./reports/results/HolaMundo.html";

	Map <String, Object> params=new HashMap <String, Object>();

	try

	{
	JasperReport jasperReport=JasperCompileManager.compileReport(reportSource);

	JasperPrint jasperPrint=JasperFillManager.fillReport(
	jasperReport, params, new JREmptyDataSource());

	JasperExportManager.exportReportToHtmlFile(
	jasperPrint, reportDest);

	JasperViewer.viewReport(jasperPrint);
	}
	catch (JRException ex)
	{
	System.out.println(ex.getMessage());
	}

    }
    
}

public int compare(String o1, String o2) {
         long p1=Long.parseLong(o1);
         long p2=Long.parseLong(o2);
        if (p1<p2) return 1;
        else if(p1>p2) return -1;
        else return 0;
        
     }

numeros=new TreeSet<String>(new ComparadorNumeros());