The toEpochMilli() method of an Instant class is used to convert this instant to the number of milliseconds from the epoch of 1970-01-01T00:00:00Z to a long value. This method returns that long value.
Syntax:
public long toEpochMilli()
Returns: This method returns number of milliseconds since the epoch of 1970-01-01T00:00:00Z.
Exception: This method throws ArithmeticException if numeric overflow occurs.
Below programs illustrate the Instant.toEpochMilli() method:
Program 1:
Java
// Java program to demonstrate// Instant.toEpochMilli() methodimport java.time.*;public class GFG { public static void main(String[] args) { // create a Instant object Instant instant = Instant.parse("2018-12-30T19:34:50.63Z"); // get millisecond value using toEpochMilli() long value = instant.toEpochMilli(); // print result System.out.println("Millisecond value: " + value); }} |
Program 2:
Java
// Java program to demonstrate// Instant.toEpochMilli() methodimport java.time.*;public class GFG { public static void main(String[] args) { // create a Instant object Instant instant = Instant.now(); // current Instant System.out.println("Current Instant: " + instant); // get millisecond value using toEpochMilli() long value = instant.toEpochMilli(); // print result System.out.println("Millisecond value: " + value); }} |
References: https://docs.oracle.com/javase/10/docs/api/java/time/Instant.html#toEpochMilli()
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