How To Find Difference Between Two Dates In Java

Chapter: Date and Time Last Updated: 01-04-2023 14:17:35 UTC

Program:

            /* ............... START ............... */
                import java.time.LocalDate;
import java.time.Period;

public class DateDifferenceExample {
    public static void main(String[] args) {
        LocalDate startDate = LocalDate.of(2022, 1, 1);
        LocalDate endDate = LocalDate.of(2022, 12, 31);

        Period period = Period.between(startDate, endDate);
        int years = period.getYears();
        int months = period.getMonths();
        int days = period.getDays();

        System.out.println("Difference between " + startDate + " and " + endDate + " is "
                + years + " years, " + months + " months, and " + days + " days.");
    }
}

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

Output

Difference between 2022-01-01 and 2022-12-31 is 0 years, 11 months, and 30 days.


/*
In this example, the start date is January 1, 2022, and the end date is December 31, 2022.
 The program calculates the difference between these two dates and outputs the result as 0 years, 
11 months, and 30 days. This means that the two dates are almost a year apart (11 months and 30 days).
*/

Notes:

• The program is designed to demonstrate how to calculate the difference between two dates in Java.
• First, the program imports the necessary classes from the java.time package, which was introduced in Java 8 to provide a more modern date and time API.
• Next, the program creates two LocalDate objects named startDate and endDate, which represent the start and end dates, respectively. In this example, the start date is January 1, 2022, and the end date is December 31, 2022.
• Then, the program uses the Period.between() method to calculate the difference between the two dates in years, months, and days. The result is stored in a Period object named period.
• Finally, the program extracts the individual year, month, and day components from the Period object using its respective methods getYears(), getMonths(), and getDays(). The program then prints the result to the console, which shows that the difference between the two dates is 0 years, 11 months, and 30 days.
• Overall, the program demonstrates how to use the java.time package in Java to perform date-related operations such as finding the difference between two dates.

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