ChronoLocalDateTime isBefore() method in Java with Examples
The isBefore() method of ChronoLocalDateTime interface in Java is used to check if the date, passed as the parameter, is before this ChronoLocalDateTime instance or not. It returns a boolean value showing the same.
Syntax:
default boolean isBefore(ChronoLocalDateTime otherDate)
Parameter: This method accepts a parameter otherDate which specifies the other date-time to be compared to this ChronoLocalDateTime. It should not be null.
Returns: The function returns boolean value showing if this date-time is before the specified date-time.
Below programs illustrate the ChronoLocalDateTime.isBefore() method:
Program 1:
// Program to illustrate the isBefore() method  import java.util.*;import java.time.*;import java.time.chrono.*;  public class GfG {    public static void main(String[] args)    {        // Parses the date        ChronoLocalDateTime dt1            = LocalDateTime.parse("2018-11-03T12:45:30");          // Prints the date        System.out.println(dt1);          // Parses the date        ChronoLocalDateTime dt2            = LocalDateTime.parse("2016-12-04T12:45:30");          // Prints the date        System.out.println(dt2);          // Compares both dates        System.out.println(dt1.isBefore(dt2));    }} |
Output:
2018-11-03T12:45:30 2016-12-04T12:45:30 false
Program 2:
// Program to illustrate the isBefore() method  import java.util.*;import java.time.*;import java.time.chrono.*;  public class GfG {    public static void main(String[] args)    {        // Parses the date        ChronoLocalDateTime dt1            = LocalDateTime.parse("2018-11-03T12:45:30");          // Prints the date        System.out.println(dt1);          // Parses the date        ChronoLocalDateTime dt2            = LocalDateTime.parse("2019-12-04T12:45:30");          // Prints the date        System.out.println(dt2);          // Compares both dates        System.out.println(dt1.isBefore(dt2));    }} |
Output:
2018-11-03T12:45:30 2019-12-04T12:45:30 true
