LongAccumulator doubleValue() method in Java with Examples
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
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAccumulator.html#doubleValue–
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