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ChronoZonedDateTime isAfter() method in Java with Examples

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  • Last Updated : 29 May, 2019
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The isAfter() method of ChronoZonedDateTime interface in Java is used to check if the date, passed as the parameter, is after this ChronoZonedDateTime instance or not. It returns a boolean value showing the same.

Syntax:

public boolean isAfter(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 after the specified date-time.

Below programs illustrate the ChronoZonedDateTime.isAfter() method:

Program 1:




// Program to illustrate the isAfter() method
  
import java.util.*;
import java.time.*;
import java.time.chrono.*;
  
public class GfG {
    public static void main(String[] args)
    {
        // Parses the date
        ChronoZonedDateTime dt1
            = ZonedDateTime.parse(
                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // Prints the date
        System.out.println(dt1);
  
        // Parses the date
        ChronoZonedDateTime dt2
            = ZonedDateTime.parse(
                "2018-10-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // Prints the date
        System.out.println(dt2);
  
        // Compares both dates
        System.out.println(dt1.isAfter(dt2));
    }
}

Output:

2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
2018-10-06T19:21:12.123+05:30[Asia/Calcutta]
true

Program 2:




// Program to illustrate the isAfter() method
  
import java.util.*;
import java.time.*;
import java.time.chrono.*;
  
public class GfG {
    public static void main(String[] args)
    {
        // Parses the date
        ChronoZonedDateTime dt1
            = ZonedDateTime.parse(
                "2018-10-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // Prints the date
        System.out.println(dt1);
  
        // Parses the date
        ChronoZonedDateTime dt2
            = ZonedDateTime.parse(
                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // Prints the date
        System.out.println(dt2);
  
        // Compares both dates
        System.out.println(dt1.isAfter(dt2));
    }
}

Output:

2018-10-06T19:21:12.123+05:30[Asia/Calcutta]
2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
false

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#isAfter-java.time.chrono.ChronoZonedDateTime-


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