Difference days of two dates

This code will compute the the total days between two dates using date chooser now my problem is the result gives me a negative number, the number is correct but it is in negative form, how to put it in positive form

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

 Date date1 = this.dcStart.getDate(); 
 Date date2 = this.dcRetire.getDate(); 
 int minutes = 1000 * 60;
 int hours = minutes * 60;
 long days1 = hours * 24;
 long years = days1 * 365;

long days = date1.getTime() - date2.getTime();
long DATE = days / days1;

txtWD.setText(Float.toString((float) DATE));

}