The format() method of OffsetDateTime class in Java formats this date-time using the specified formatter.
Syntax :
public String format(DateTimeFormatter formatter)
Parameter : This method accepts a single parameter formatter which specifies the formatter to use, not null.
Return Value: It returns the formatted date string, not null.
Exceptions: The function throws a DateTimeException that is when an error occurs during printing.
Below programs illustrate the format() method:
Program 1 :
Java
// Java program to demonstrate the format() methodimport java.time.OffsetDateTime;import java.time.format.DateTimeFormatter;public class GFG { public static void main(String[] args) { // Parses the date1 OffsetDateTime date1 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00"); // Prints the date System.out.println("Date1: " + date1); DateTimeFormatter formatter = DateTimeFormatter.ISO_TIME; System.out.println(formatter.format(date1)); }} |
Output:
Date1: 2018-12-12T13:30:30+05:00 13:30:30+05:00
Program 2 :
Java
// Java program to demonstrate the format() method// Exceptionsimport java.time.OffsetDateTime;import java.time.format.DateTimeFormatter;public class GFG { public static void main(String[] args) { try { // Parses the date1 OffsetDateTime date1 = OffsetDateTime.parse("2018-13-12T13:30:30+05:00"); // Prints the date System.out.println("Date1: " + date1); DateTimeFormatter formatter = DateTimeFormatter.ISO_TIME; System.out.println(formatter.format(date1)); } catch (Exception e) { System.out.println(e); } }} |
Output:
java.time.format.DateTimeParseException: Text '2018-13-12T13:30:30+05:00' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 13
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