The java.LongAccumulator.doubleValue() is an inbuilt method in java that returns the current value as a double after a widening primitive conversion.
Syntax:
public double doubleValue()
Parameters: This method does not accepts any parameter.
Return Value: This method returns the current value as a double after a widening primitive conversion.
Below programs illustrate the above method:
Program 1:
// Program to demonstrate the doubleValue() method import java.lang.*;
import java.util.concurrent.atomic.LongAccumulator;
public class GFG {
public static void main(String args[])
{
LongAccumulator num = new LongAccumulator(Long::sum, 0L);
// accumulate operation on num
num.accumulate( 42 );
num.accumulate( 10 );
// Print before doubleValue operation
System.out.println( " the old value is: " + num);
// doubleValues current value
num.doubleValue();
// Print after doubleValue operation
System.out.println( "the current value is: " + num);
}
} |
Output:
the old value is: 52 the current value is: 52
Program 2:
// Program to demonstrate the doubleValue() method import java.lang.*;
import java.util.concurrent.atomic.LongAccumulator;
public class GFG {
public static void main(String args[])
{
LongAccumulator num = new LongAccumulator(Long::sum, 0L);
// accumulate operation on num
num.accumulate( 4 );
num.accumulate( 10 );
// Print before doubleValue operation
System.out.println( " the old value is: " + num);
// doubleValues current value
num.doubleValue();
// Print after doubleValue operation
System.out.println( "the current value is: " + num);
}
} |
Output:
the old value is: 14 the current value is: 14