The get() method of Instant class helps to get the value for the specified field passed as parameter from this instant as an integer value. This method queries this instant for the value of the field and the returned value will always be within the valid range of values for the field. When the field is not supported and method is unable to return int value then an exception is thrown.
Syntax:
public int get(TemporalField field)
Parameters: This method accepts one parameter field which is the field to get.
Returns: This method returns int value for the field.
Exception: This method throws the following exceptions:
- DateTimeException: if a value for the field cannot be obtained or the value is outside the range of valid values for the field.
- UnsupportedTemporalTypeException: if the field is not supported or the range of values exceeds an int.
- ArithmeticException: if numeric overflow occurs.
Below programs illustrate the get() method:
Program 1:
Java
// Java program to demonstrate// Instant.get() methodimport java.time.*;import java.time.temporal.ChronoField;public class GFG { public static void main(String[] args) { // create a Instant object Instant instant = Instant.parse("2018-12-30T19:34:50.63Z"); // get Milli of Second value from instant // using get method int secondvalue = instant.get(ChronoField.MILLI_OF_SECOND); // print result System.out.println("MilliSecond Field: " + secondvalue); }} |
MilliSecond Field: 630
Program 2:
Java
// Java program to demonstrate// Instant.get() methodimport java.time.*;import java.time.temporal.ChronoField;public class GFG { public static void main(String[] args) { // create a Instant object Instant instant = Instant.parse("2018-12-30T01:34:50.93Z"); // get Nano of Second value from instant // using get method int secondvalue = instant.get(ChronoField.NANO_OF_SECOND); // print result System.out.println("Nano of Second: " + secondvalue); }} |
Nano of Second: 930000000
Program 3: To get UnsupportedTemporalTypeException
Java
// Java program to demonstrate// Instant.get() methodimport java.time.*;import java.time.temporal.ChronoField;public class GFG { public static void main(String[] args) { // create a Instant object Instant instant = Instant.parse("2018-12-30T01:34:50.93Z"); // try to find era using ChronoField try { int secondvalue = instant.get(ChronoField.ERA); } catch (Exception e) { // print exception System.out.println("Exception: " + e); } }} |
Exception: java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: Era
References: https://docs.oracle.com/javase/10/docs/api/java/time/Instant.html#get(java.time.temporal.TemporalField)