Instant isAfter() method in Java

It can be checked if a particular Instant object is after the other Instant object in a timeline using the isAfter() method in the Instant class in Java. This method requires a single parameter i.e. the Instant object that is to be compared. It returns true if the Instant object is after the other Instant object and false otherwise.

A program that demonstrates this is given as follows

Example

 Live Demo

import java.time.*;
import java.time.temporal.ChronoUnit;
public class Demo {
   public static void main(String[] args) {
      Instant i1 = Instant.parse("2019-01-13T16:10:35.00Z");
      Instant i2 = Instant.parse("2019-01-13T11:19:28.00Z");
      boolean flag = i1.isAfter(i2);
      System.out.println("Instant object i1 is: " + i1);
      System.out.println("Instant object i2 is: " + i2);
      if(flag)
         System.out.println("
Instant object i1 is after Instant object i2");
      else
         System.out.println("
Instant object i1 is before Instant object i2");
   }
}

Output

Instant object i1 is: 2019-01-13T16:10:35Z
Instant object i2 is: 2019-01-13T11:19:28Z

Instant object i1 is after Instant object i2

Now let us understand the above program.

The two instant objects i1 and i2 are displayed. It is checked if the Instant object i1 is after the Instant object i2 in the timeline using the isAfter() method. The returned value is displayed using an if statement. A code snippet that demonstrates this is as follows:

Instant i1 = Instant.parse("2019-01-13T16:10:35.00Z");
Instant i2 = Instant.parse("2019-01-13T11:19:28.00Z");
boolean flag = i1.isAfter(i2);
System.out.println("Instant object i1 is: " + i1);
System.out.println("Instant object i2 is: " + i2);
if(flag)
   System.out.println("
Instant object i1 is after Instant object i2");
else
   System.out.println("
Instant object i1 is before Instant object i2");