getLong() method of the YearMonth class in Java is used to get the value of the specified field from this year-month as a long value. This method queries this year-month for the value of the specified field. An exception is thrown if it is not possible to return the value because the field is not supported or for some other reason.
public long getLong(TemporalField field)
Parameters: This method accepts field as parameter which represents the TemporalField to whose value is required.
Return value: This method returns the value for the field as a long.
Exception: This method throws 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 getLong() method of YearMonth in Java:
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