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LocalTime getLong() method in Java with Examples
  • Last Updated : 03 Dec, 2018

The getLong() method of a LocalTime class helps to get the value for the specified field passed as a parameter from this LocalTime as an long value. This method queries this time for the value of the field and the returned value will always be within the valid range of values for the field. When the field is not supported and method is unable to return long value then an exception is thrown.

Syntax:

public long getLong(TemporalField field)

Parameters: This method accepts a single parameter TemporalField field which is the field to get. It should not be null.

Return value: This method returns the long value for the field.

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 long.
  • ArithmeticException: if numeric overflow occurs.

Below programs illustrate the getLong() method:

Program 1:




// Java program to demonstrate
// LocalTime.getLong() method
  
import java.time.*;
import java.time.temporal.ChronoField;
  
public class GFG {
    public static void main(String[] args)
    {
        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("19:34:50.63");
  
        // get Mili of Second value from LocalTime
        // using get method
        long secondvalue
            = time.getLong(ChronoField.MILLI_OF_SECOND);
  
        // prlong result
        System.out.println("MiliSecond Field: "
                           + secondvalue);
    }
}


Output:

MiliSecond Field: 630

Program 2: To get UnsupportedTemporalTypeException




// Java program to demonstrate
// LocalTime.getLong() method
  
import java.time.*;
import java.time.temporal.ChronoField;
  
public class GFG {
    public static void main(String[] args)
    {
        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("19:34:50.63");
  
        // try to find era using ChronoField
        try {
  
            long secondvalue
                = time.getLong(ChronoField.YEAR);
        }
        catch (Exception e) {
  
            // prlong exception
            System.out.println("Exception: " + e);
        }
    }
}


Output:

Exception: java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: Year

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

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