>> TodayPlusDays

Add days to today or current date in Java:

Using below code, you can add days to today's date or to current date and find out the new date in any date format.

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

public class FromToday{

       public static void main(String[] args) throws Exception {            

                     SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy"); // "dd/MM/yyyy" is the date format , you can use any date format , month should be using capitol "M" only , not small "m".

                     Calendar calendar = Calendar.getInstance();
                                   

String today = dateFormat.format(calendar.getTime());

System.out.println("Today's date = "+today);

                     calendar.add(Calendar.DAY_OF_MONTH, 2); // add 2 days on today.

                     String newDateFromToday = dateFormat.format(calendar.getTime());

                     System.out.println("new Date after adding 2 days = "+newDateFromToday);

             

       }

}

Output:
new Date after adding 2 days = 03/01/2019 if today = 01/01/2019

Let's give a different date format:

public class FromToday{

       public static void main(String[] args) throws Exception {            

                     SimpleDateFormat dateFormat = new SimpleDateFormat("M/d/yyyy"); // "dd/MM/yyyy" is the date format , you can use any date format , month should be using capitol "M" only , not small "m".

                     Calendar calendar = Calendar.getInstance();

                       String today = dateFormat.format(calendar.getTime());

     System.out.println("Today's date = "+today);                                   

                     calendar.add(Calendar.DAY_OF_MONTH, 2); // add 2 days on today.

                     String newDateFromToday = dateFormat.format(calendar.getTime());

                     System.out.println("new Date after adding 2 days = "+newDateFromToday);

             

       }

}

Output:
new Date after adding 2 days = 1/3/2019 if today = 01/01/2019

Let's make a reusable function in which we supply the date, date format and number of days as input and get the output.

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

public class FromToday{

       public static void main(String[] args) throws Exception {            

             

              String newDate = plusDaysFromToday("dd-MM-yyyy",2);//calling the method/function

             

              System.out.println("The date as returned by the function = "+newDate);

       }

      

       public static String plusDaysFromToday(String givenDateFormat, int numOFDays) throws Exception{

             

              SimpleDateFormat dateFormat = new SimpleDateFormat(givenDateFormat);

             

              Calendar calendar = Calendar.getInstance();

          String today = dateFormat.format(calendar.getTime());

          System.out.println("Today's date = "+today);

             

              calendar.add(Calendar.DAY_OF_MONTH, numOFDays);

             

              String newDateFromToday = dateFormat.format(calendar.getTime());

             

              System.out.println("newDateFromToday = "+newDateFromToday );

             

              return newDateFromToday ;

             

       }

}

Output:

newDateFromToday = 03-01-2019 if today is 01-01-2019

The date as returned by the function = 03-01-2019