Java Instant compare instants before or after

import java.time.Instant;

public class Main {
  public static void main(String[] args) {
    Instant i1 = Instant.ofEpochSecond(20);
    Instant i2 = Instant.ofEpochSecond(55);
    System.out.println("i1:" + i1);
    System.out.println("i2:" + i2);

    // Compare instants
    System.out.println("i1.isBefore(i2):" + i1.isBefore(i2));
    System.out.println("i1.isAfter(i2):" + i1.isAfter(i2));
  }//w w  w. java2 s  .  co  m
}