Problem with a report

[sanduta]

I had don a report in iReport and i wont to put in a java file.
I did this button and this acction:
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String raport = "./rapoarte/classic.jasper";
String outFileName = "/rapoarte/raport1.pdf";
HashMap hm = new HashMap();

String edit, anul, anul1;

hm.put("nume", edit);
hm.put("prenume", anul);
hm.put("data_internare",anul1);

try {
JasperReport jasperReport = JasperCompileManager.compileReport(raport);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, hm, cnx);
JasperViewer.viewReport(jasperPrint, false);

}
catch (JRException ex) {
ex.printStackTrace();
}
}

I have an error in this lines:
hm.put("nume", edit);
hm.put("prenume", anul);
hm.put("data_internare",anul1);

variable edit might not have been initialized

Help me please

[pao]

Initialise the reference 'edit' before you try to pass into a method....

Code:

String edit, anul, anul1;

hm.put("nume", edit);