ChronoZonedDateTime isBefore() method in Java with Examples
Last Updated :
29 May, 2019
The isBefore() method of ChronoZonedDateTime interface in Java is used to check if the date, passed as the parameter, is before this ChronoZonedDateTime instance or not. It returns a boolean value showing the same.
Syntax:
public boolean isBefore(ChronoZonedDateTime otherDate)
Parameter: This method accepts a parameter otherDate which specifies the other date-time to be compared to this ChronoZonedDateTime. 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 ChronoZonedDateTime.isBefore() method:
Program 1:
import java.util.*;
import java.time.*;
import java.time.chrono.*;
public class GfG {
public static void main(String[] args)
{
ChronoZonedDateTime dt1
= ZonedDateTime.parse(
"2018-12-06T19:21:12.123+05:30[Asia/Calcutta]" );
System.out.println(dt1);
ChronoZonedDateTime dt2
= ZonedDateTime.parse(
"2018-10-06T19:21:12.123+05:30[Asia/Calcutta]" );
System.out.println(dt2);
System.out.println(dt1.isBefore(dt2));
}
}
|
Output:
2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
2018-10-06T19:21:12.123+05:30[Asia/Calcutta]
false
Program 2:
import java.util.*;
import java.time.*;
import java.time.chrono.*;
public class GfG {
public static void main(String[] args)
{
ChronoZonedDateTime dt1
= ZonedDateTime.parse(
"2018-10-06T19:21:12.123+05:30[Asia/Calcutta]" );
System.out.println(dt1);
ChronoZonedDateTime dt2
= ZonedDateTime.parse(
"2018-12-06T19:21:12.123+05:30[Asia/Calcutta]" );
System.out.println(dt2);
System.out.println(dt1.isBefore(dt2));
}
}
|
Output:
2018-10-06T19:21:12.123+05:30[Asia/Calcutta]
2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
true
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#isBefore-java.time.chrono.ChronoZonedDateTime-
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