Substract days from current date using Calendar add method in Java

/*from  w w  w. ja va 2  s  .  co  m*/
import java.util.Calendar;

public class Main {

  public static void main(String[] args) {
    Calendar now = Calendar.getInstance();
    System.out.println("Current date : " + (now.get(Calendar.MONTH) + 1) + "-"
        + now.get(Calendar.DATE) + "-" + now.get(Calendar.YEAR));

    now = Calendar.getInstance();
    now.add(Calendar.DATE, -10);
    System.out.println("date before 10 days : " + (now.get(Calendar.MONTH) + 1) + "-"
        + now.get(Calendar.DATE) + "-" + now.get(Calendar.YEAR));
  }
}