MonthDay getLong() method in Java with Examples

The getLong() method of MonthDay class in Java gets the value of the specified field from this month-day as an long.

Syntax:

public long getLong(TemporalField field)

Parameter: This method accepts a parameter field which specifies the field to getLong and not null.

Returns: The function returns the long value for the field.

Exceptions: The function throws three exptions as described below:

• DateTimeException: this is thrown when 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 when the field is not supported or the range of values exceeds an long
• ArithmeticException: thrown when a numeric overflow occurs.

Below programs illustrate the MonthDay.getLong() method:

Program 1:

// Program to illustrate the getLong() method

import java.util.*;
import java.time.*;
import java.time.temporal.ChronoField;

public class GfG {
    public static void main(String[] args)
    {

        // Parses the date
        MonthDay tm1 = MonthDay.parse("--10-12");

        System.out.println(
            tm1.getLong(ChronoField.DAY_OF_MONTH));
    }
}

Output:

12

Program 2:

// Program to illustrate the getLong() method

import java.util.*;
import java.time.*;
import java.time.temporal.ChronoField;

public class GfG {
    public static void main(String[] args)
    {

        // Parses the date
        MonthDay tm1
            = MonthDay.parse("--12-06");
        System.out.println(
            tm1.getLong(
                ChronoField.DAY_OF_MONTH));
    }
}

Output:

6

Program 3: To demonstrate DateTimeParseException

// Program to illustrate the getLong() method

import java.util.*;
import java.time.*;
import java.time.temporal.ChronoField;

public class GfG {
    public static void main(String[] args)
    {

        try {

            // Parses the date
            MonthDay tm1
                = MonthDay.parse("--13-12");

            System.out.println(
                tm1.getLong(
                    ChronoField.DAY_OF_MONTH));
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

java.time.format.DateTimeParseException:
 Text '--13-12' could not be parsed:
 Unable to obtain MonthDay from TemporalAccessor:
 {DayOfMonth=12, MonthOfYear=13},
 ISO of type java.time.format.Parsed

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