OffsetDateTime format() method in Java with examples
Last Updated :
13 Aug, 2021
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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 program to demonstrate the format() method
import 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));
}
}
// 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 program to demonstrate the format() method
// Exceptions
import 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);
}
}
}
// 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
