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How to add and subtract days to current date using Calendar class in Java ?.

Program to demonstrate use of Calendar class in adding and subtracting days to current date in Java

package com.hubberspot.example;

import java.util.Calendar;


public class DateManipulation {

 public static void main(String[] args) {

  // Create a Calendar object
  Calendar calendar = Calendar.getInstance();

  // Get current day from calendar
  int day = calendar.get(Calendar.DATE);
  // Get current month from calendar
  int month = calendar.get(Calendar.MONTH) + 1;  
  // Get current year from calendar
  int year = calendar.get(Calendar.YEAR);

  System.out.print("Today's Date : ");
  // printing todays date in dd/mm/yy
  System.out.println(day+"/"+month+"/"+year);

  // adding 1 day to current date
  calendar.add(Calendar.DATE, 1);

  day = calendar.get(Calendar.DATE);
  month = calendar.get(Calendar.MONTH) + 1;  
  year = calendar.get(Calendar.YEAR);

  System.out.print("Tomorrow's Date : ");
  // printing tomorrows date in dd/mm/yy
  System.out.println(day+"/"+month+"/"+year);

  // subtracting 8 days from tomorrows day 
  // to get last weeks date 
  calendar.add(Calendar.DATE, -8);

  day = calendar.get(Calendar.DATE);
  month = calendar.get(Calendar.MONTH) + 1;  
  year = calendar.get(Calendar.YEAR);

  // printing last week's date in dd/mm/yy
  System.out.print("Last Week's Date : ");
  System.out.println(day+"/"+month+"/"+year);

 }

}



Output of the program :



 
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