Substract minutes from current date using Calendar add method in Java

// ww 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 time : " + now.get(Calendar.HOUR_OF_DAY) + ":"
        + now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));

    now = Calendar.getInstance();
    now.add(Calendar.MINUTE, -50);
    System.out.println("Time before 50 minutes : " + now.get(Calendar.HOUR_OF_DAY) + ":"
        + now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));
  }
}