import java.util.Calendar; public class ChangingDays{ public static void main(String[] args) { //create Calendar instance Calendar now = Calendar.getInstance(); System.out.println("Current date : " + (now.get(Calendar.MONTH) + 1) + "-" + now.get(Calendar.DATE) + "-" + now.get(Calendar.YEAR)); //add days to current date using Calendar.add method now.add(Calendar.DATE,1); System.out.println("date after one day : " + (now.get(Calendar.MONTH) + 1) + "-" + now.get(Calendar.DATE) + "-" + now.get(Calendar.YEAR)); //substract days from current date using Calendar.add method 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)); } }