Calculate a date 100 days after a date in Java

Using Java to calculate datetime, first consider the time class, Java provides in the time and date related classes, there is a calendar class, you can get a time and date.

To calculate the date 100 days after a certain date, the idea is as follows:

1. Set the time first, e.g. January 1, 2017;

2. Increase the number of days on a given date by 100;

The specific code is as follows:

1         /*2 * 1, first given a time, such as January 1, 20173          */4Calendar CLD =calendar.getinstance ();5Cld.set (Calendar.year, 2017);6Cld.set (calendar.monday,0);7Cld.set (calendar.date,1);8         9         //call Add () in the Calendar class to increase the amount of timeTenCld.add (calendar.date, 100); One          ASystem.out.println ("Add 100 Days to Date:" +cld.get (calendar.year) + "year" +cld.get (calendar.month) + "Month" +cld.get (calendar.date) + "Day"); -          -         

The printing results are as follows:

Add 100 days to date: March 11, 2017

Adds or subtracts a specified amount of time for a given calendar field, based on the rules of the calendar. For example, to subtract 5 days from the current calendar time, you can do this by calling the following method:

add(Calendar.DAY_OF_MONTH, -5)。

Parameters:

field -Calendar field.

amount -The amount of date or time added to the field.

Calculate a date 100 days after a date in Java