Progrm

import java.util.Calendar;

public class AddSubtractDays {

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

    now.add(Calendar.DATE, 1);

    System.out.println("date after adding days : " + (now.get(Calendar.DATE)) + "-" + (now.get(Calendar.MONTH)+1) + "-" + now.get(Calendar.YEAR));

    Calendar now1 = Calendar.getInstance();
    now1.add(Calendar.DATE, -1);

    System.out.println("date after subtracting days : " + (now1.get(Calendar.DATE)) + "-" +(now.get(Calendar.MONTH)+1) + "-" + now1.get(Calendar.YEAR));
  }
}