{filelink=5570}

import java.util.Calendar;

public class JourAvant {
  public static void main(String[] args) {
    Calendar cal = Calendar.getInstance();

    System.out.println("Aujourd'hui : " + cal.getTime());
    cal.add(Calendar.DATE, -30);
    System.out.println("30 jours avant: " + cal.getTime());

  }
}