DoubleAdder sum() method in Java with Examples
The java.DoubleAdder.sum() is an inbuilt method in java that returns the current sum. When the object of the class is created its initial value is zero.
Syntax:
public double sum()
Parameters: This method does not accepts any parameter.
Return Value: This method returns the current sum.
Below programs illustrate the above method:
Program 1:
// Program to demonstrate the sum() method import java.lang.*; import java.util.concurrent.atomic.DoubleAdder; public class GFG { public static void main(String args[]) { DoubleAdder num = new DoubleAdder(); // add operation on num num.add( 42 ); num.add( 10 ); // sum operation on variable num num.sum(); // Print after add operation System.out.println( " the current value is: " + num); } } |
Output:
the current value is: 52.0
Program 2:
// Program to demonstrate the sum() method import java.lang.*; import java.util.concurrent.atomic.DoubleAdder; public class GFG { public static void main(String args[]) { DoubleAdder num = new DoubleAdder(); // add operation on num num.add( 10 ); // sum operation on variable num num.sum(); // Print after add operation System.out.println( " the current value is: " + num); } } |
Output:
the current value is: 10.0
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/DoubleAdder.html#sum–