How do I compare dates using Java 8 Date-Time API?

How do I compare dates using Java 8 Date-Time API?

You can compare dates in Java 8 using the LocalDate, LocalDateTime, or ZonedDateTime classes. For example, you can use the isBefore(), isAfter(), and isEqual() methods.

Can you show me a code example?

Sure! Here's a simple example:

import java.time.LocalDate;

public class DateComparison {
    public static void main(String[] args) {
        LocalDate date1 = LocalDate.of(2023, 10, 1);
        LocalDate date2 = LocalDate.of(2023, 10, 5);

        if (date1.isBefore(date2)) {
            System.out.println("date1 is before date2");
        } else if (date1.isAfter(date2)) {
            System.out.println("date1 is after date2");
        } else {
            System.out.println("date1 is equal to date2");
        }
    }
}

What if I want to compare date and time together?

You can use LocalDateTime for that. The comparison methods work the same way. For example:

import java.time.LocalDateTime;

public class DateTimeComparison {
    public static void main(String[] args) {
        LocalDateTime dateTime1 = LocalDateTime.of(2023, 10, 1, 10, 0);
        LocalDateTime dateTime2 = LocalDateTime.of(2023, 10, 1, 12, 0);

        if (dateTime1.isBefore(dateTime2)) {
            System.out.println("dateTime1 is before dateTime2");
        }
    }
}