LocalDateTime isAfter() method in Java with Examples

The isAfter() method of LocalDateTime class in Java is used to check if the date, passed as the parameter, is after this LocalDateTime instance or not. It returns a boolean value showing the same.

Syntax:

public boolean isAfter(ChronoLocalDateTime otherDate)

Parameter: This method accepts a parameter otherDate which specifies the other date-time to be compared to this LocalDateTime. It should not be null.

Returns: The function returns boolean value showing if this date-time is after the specified date-time.

Below programs illustrate the LocalDateTime.isAfter() method:

Program 1:

// Program to illustrate the isAfter() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Parses the date
        LocalDateTime dt1
            = LocalDateTime.parse("2018-11-03T12:45:30");

        // Prints the date
        System.out.println(dt1);

        // Parses the date
        LocalDateTime dt2
            = LocalDateTime.parse("2016-12-04T12:45:30");

        // Prints the date
        System.out.println(dt2);

        // Compares both dates
        System.out.println(dt1.isAfter(dt2));
    }
}

Output:

2018-11-03T12:45:30
2016-12-04T12:45:30
true

Program 2:

// Program to illustrate the isAfter() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Parses the date
        LocalDateTime dt1
            = LocalDateTime.parse("2018-11-03T12:45:30");

        // Prints the date
        System.out.println(dt1);

        // Parses the date
        LocalDateTime dt2
            = LocalDateTime.parse("2019-12-04T12:45:30");

        // Prints the date
        System.out.println(dt2);

        // Compares both dates
        System.out.println(dt1.isAfter(dt2));
    }
}

Output:

2018-11-03T12:45:30
2019-12-04T12:45:30
false

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalDateTime.html#isAfter(java.time.chrono.ChronoLocalDateTime)