LocalDate isBefore() method in Java with Examples

The isBefore() method of LocalDate class in Java checks if this date is before the specified date.

Syntax: 

public boolean isBefore(ChronoLocalDate date2)

Parameter: This method accept a single mandatory parameter date2 the other date to compare to and not null. 

Return Value: The function returns true if this date is before the specified date.

Below programs illustrate the isBefore() method of LocalDate in Java:

Program 1:  

Java

// Program to illustrate the isBefore() method

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

public class GfG {
    public static void main(String[] args)
    {
        // Parses the first date
        LocalDate dt1 = LocalDate.parse("2018-11-27");
        // Parses the second date
        LocalDate dt2 = LocalDate.parse("2017-11-27");

        // Checks
        System.out.println(dt1.isBefore(dt2));
    }
}

Output:

false

Program 2: 

Java

// Program to illustrate the isBefore() method

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

public class GfG {
    public static void main(String[] args)
    {
        // Parses the first date
        LocalDate dt1 = LocalDate.parse("2018-11-27");
        // Parses the second date
        LocalDate dt2 = LocalDate.parse("2019-11-27");

        // Checks
        System.out.println(dt1.isBefore(dt2));
    }
}

Output:

true

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalDate.html#isBefore(java.time.chrono.ChronoLocalDate)