Java Program To Add Days To Date

Chapter: Date and Time Last Updated: 16-04-2023 12:13:32 UTC

Program:

            /* ............... START ............... */
                
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class AddDaysToDate {
    public static void main(String[] args) {
        // Input date in string format
        String inputDate = "2023-04-16";
        // Number of days to add
        int daysToAdd = 10;

        // Create a LocalDate object from the input date string
        LocalDate date = LocalDate.parse(inputDate);

        // Add the number of days to the date
        LocalDate newDate = date.plusDays(daysToAdd);

        // Format the new date as a string using the ISO date format
        String outputDate = newDate.format(DateTimeFormatter.ISO_DATE);

        // Print the new date
        System.out.println("New date: " + outputDate);
    }
}

                /* ............... END ............... */
        

Output

New date: 2023-04-26
We have added 10 days to the input date of April 16, 2023, resulting in April 26, 2023.

Notes:

• The first step in the program is to define the input date and the number of days to add as strings and an integer, respectively. We then use the LocalDate.parse() method to convert the input date string into a LocalDate object.
• Once we have a LocalDate object representing the input date, we use the plusDays() method to add the specified number of days to it. This method returns a new LocalDate object representing the updated date.
• Finally, we format the new date as a string using the ISO date format and print it to the console using the System.out.println() method.
• Overall, this program demonstrates how to use the LocalDate class from the java.time package to perform date arithmetic in Java.

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