Open In App

OffsetDateTime getLong() method in Java with examples

Improve
Improve
Like Article
Like
Save
Share
Report

The getLong() method of OffsetDateTime class in Java gets the value of the specified field from this date-time as an long.

Syntax :

public long getLong(TemporalField field)

Parameter: This method accepts a single parameter field which specifies the field to get, not null.

Return Value: It returns the value for the field.

Exceptions: The function throws three exceptions which are described below:

  • DateTimeException: it is thrown if a value for the field cannot be obtained or the value is outside the range of valid values for the field.
  • UnsupportedTemporalTypeException: it is thrown if the field is not supported or the range of values exceeds an long.
  • ArithmeticException: it is thrown if numeric overflow occurs

Below programs illustrate the getLong() method:

Program 1 :




// Java program to demonstrate the getLong() method
import java.time.OffsetDateTime;
import java.time.temporal.ChronoField;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // parses a date
        OffsetDateTime date = OffsetDateTime.parse("2018-12-03T12:30:30+01:00");
  
        // Prints the value of the specified
        // field from this date-time as an long.
        System.out.println(date.getLong(ChronoField.CLOCK_HOUR_OF_DAY));
    }
}


Output:

12

Program 2 :




// Java program to demonstrate the getDayOfYear() method
// exceptions
  
import java.time.OffsetDateTime;
import java.time.temporal.ChronoField;
  
public class GFG {
    public static void main(String[] args)
    {
        try {
            // parses a date
            OffsetDateTime date = OffsetDateTime.parse("2018-24-03T12:30:30+01:00");
  
            // Prints the value of the specified
            // field from this date-time as an long.
            System.out.println(date.getLong(ChronoField.CLOCK_HOUR_OF_DAY));
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}


Output:

java.time.format.DateTimeParseException: 
Text '2018-24-03T12:30:30+01:00' could not be parsed: 
Invalid value for MonthOfYear (valid values 1 - 12): 24

Reference: https://docs.oracle.com/javase/8/docs/api/java/time/temporal/TemporalField.html



Last Updated : 13 Dec, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads