[Resolvido]Calendar - adicionando um mês

package app;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class TestMainDate {
	public static void main(String[] args){
		Calendar calendar = Calendar.getInstance();
        //Date data = new Date();
		calendar.set(1984,11,26);
        
        //calendar.setTime( calendar.getTime() );  
        calendar.add( Calendar.MONTH, 1 );  
        
        String date = new SimpleDateFormat("dd/MM/yyyy").format(calendar.getTime());
        
        System.out.println( date );  
	}
}