YearMonth getLong() method in Java with Examples

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.

Syntax:

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:

Program 1:

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// Java program to demonstrate
// YearMonth.getLong() method
  
import java.time.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create YearMonth object
        YearMonth yearmonth
            = YearMonth.of(2019, 4);
  
        // apply getLong() method
        // of YearMonth class to get year
        long year
            = yearmonth.getLong(
                ChronoField.YEAR_OF_ERA);
        // It will store only year
        // in variable of type long
  
        // print results
        System.out.println("YEAR: " + year);
    }
}

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Output:

YEAR: 2019

Program 2:

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// Java program to demonstrate
// YearMonth.getLong() method
  
import java.time.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create YearMonth object
        YearMonth yearmonth
            = YearMonth.of(2019, 4);
  
        // apply getLong() method
        // of YearMonth class to get month
        long month
            = yearmonth.getLong(
                ChronoField.MONTH_OF_YEAR);
        // It will store only month
        // in variable of type long
  
        // print results
        System.out.println("MONTH: " + month);
    }
}

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Output:

MONTH: 4

References: https://docs.oracle.com/javase/10/docs/api/java/time/YearMonth.html#getLong(java.time.temporal.TemporalField)

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