Douglas A. dos Santos

public class Main {

/**
* @param args the command line arguments
*/
public static void main(String[] args) {

Locale locale = new Locale("pt", "BR");
GregorianCalendar calendar = new GregorianCalendar();
SimpleDateFormat formatador = new SimpleDateFormat("dd' de 'MMMMM' de 'yyyy' - 'HH':'mm'h'", locale);
JOptionPane.showMessageDialog(null, formatador.format(calendar.getTime()));
}
}