The isBefore() method of LocalDateTime class in Java checks if this date is before the specified date-time.
Syntax:
public boolean isBefore(ChronoLocalDateTime other)
Parameter: This method accepts a parameter other which is the other date-time to be compared to. It should not be null.
Returns: The function returns boolean value: if this date-time is before the specified date-time.
Below programs illustrate the LocalDateTime.isBefore() method:
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 date
LocalDateTime dt1
= LocalDateTime
.parse( "2018-11-03T12:45:30" );
// Prints the date
System.out.println( "Date 1: " + dt1);
// Parses the date
LocalDateTime dt2
= LocalDateTime
.parse( "2016-12-04T12:45:30" );
// Prints the date
System.out.println( "Date 2: " + dt2);
// Compares both dates
System.out.println( "Is Date 1 before Date 2: "
+ dt1.isBefore(dt2));
}
} |
Output:
Date 1: 2018-11-03T12:45:30 Date 2: 2016-12-04T12:45:30 Is Date 1 before Date 2: 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 date
LocalDateTime dt1
= LocalDateTime
.parse( "2018-11-03T12:45:30" );
// Prints the date
System.out.println( "Date 1: " + dt1);
// Parses the date
LocalDateTime dt2
= LocalDateTime
.parse( "2019-12-04T12:45:30" );
// Prints the date
System.out.println( "Date 2: " + dt2);
// Compares both dates
System.out.println( "Is Date 1 before Date 2: "
+ dt1.isBefore(dt2));
}
} |
Output:
Date 1: 2018-11-03T12:45:30 Date 2: 2019-12-04T12:45:30 Is Date 1 before Date 2: true