DoubleAccumulator longValue() method in Java with Examples
Last Updated :
29 Jan, 2019
The Java.DoubleAccumulator.longValue() is an inbuilt method in java that returns the current value as a long after a narrowing primitive conversion. It means the initial datatype is double which is explicitly converted into type long.
Syntax:
public long longValue()
Parameters: The method does not accepts any parameter.
Return value: The method returns the current value as a long after a narrowing primitive conversion.
PBelow programs illustrate the above method:
Program 1:
import java.lang.*;
import java.util.concurrent.atomic.DoubleAccumulator;
public class GFG {
public static void main(String args[])
{
DoubleAccumulator num
= new DoubleAccumulator(
Double::sum, 0L);
num.accumulate(42);
num.accumulate(10);
System.out.println("Old value is: "
+ num);
System.out.println("Current long value is: "
+ num.floatValue());
}
}
|
Output:
Old value is: 52.0
Current long value is: 52.0
Program 2:
import java.lang.*;
import java.util.concurrent.atomic.DoubleAccumulator;
public class GFG {
public static void main(String args[])
{
DoubleAccumulator num
= new DoubleAccumulator(
Double::sum, 0L);
num.accumulate(26);
num.accumulate(45);
System.out.println("Old value is: "
+ num);
System.out.println("Current long value is: "
+ num.floatValue());
}
}
|
Output:
Old value is: 71.0
Current long value is: 71.0
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