The toInstant() method of Date class in Java is used to convert a Date object to an Instant object. An Instant is created during the conversion which is used to represent the same point on the timeline as this Date.
Syntax:
public Instant toInstant()
Parameters: The method does not take any parameters.
Return Value: The method returns an Instant representing the same point on the timeline as this Date.
Below programs illustrate the use of toInstant() method in Java:
Example 1:
// Java code to demonstrate // toInstant() method of Date class import java.util.Date;
import java.util.Calendar;
import java.time.Instant;
public class GfG {
public static void main(String args[])
{
// Creating a Calendar object
Calendar c1 = Calendar.getInstance();
// Set Month
// MONTH starts with 0 i.e. ( 0 - Jan)
c1.set(Calendar.MONTH, 00 );
// Set Date
c1.set(Calendar.DATE, 30 );
// Set Year
c1.set(Calendar.YEAR, 2019 );
// Creating a date object
// with specified time.
Date dateOne = c1.getTime();
Instant inst = dateOne.toInstant();
System.out.println(
"Original Date: "
+ dateOne.toString());
System.out.println(
"Instant: " + inst);
}
} |
Output:
Original Date: Wed Jan 30 06:01:46 UTC 2019 Instant: 2019-01-30T06:01:46.730Z
Example 2:
// Java code to demonstrate // clone() method of Date class import java.util.Date;
import java.util.Calendar;
import java.time.Instant;
public class GfG {
public static void main(String args[])
{
// Creating a Calendar object
Calendar c1 = Calendar.getInstance();
// Set Month
// MONTH starts with 0 i.e. ( 0 - Jan)
c1.set(Calendar.MONTH, 06 );
// Set Date
c1.set(Calendar.DATE, 12 );
// Set Year
c1.set(Calendar.YEAR, 1996 );
// Creating a date object
// with specified time.
Date dateOne = c1.getTime();
Instant inst = dateOne.toInstant();
System.out.println(
"Original Date: "
+ dateOne.toString());
System.out.println(
"Instant: " + inst);
}
} |
Output:
Original Date: Fri Jul 12 06:01:49 UTC 1996 Instant: 1996-07-12T06:01:49.766Z
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/Date.html#toInstant–