LongAdder class in Java creates a new adder with an initial sum of zero. The Java.LongAdder.sum() is an inbuilt method in java that returns the sum.
Syntax:
public long sum()
Parameters: The function does not accepts any parameter.
Return value: The method returns the current sum.
Program below demonstrates the function:
Below programs demonstrate the above function:
Program 1:
// Java program to demonstrate// the LongAdder.sum() method  import java.lang.*;import java.util.concurrent.atomic.LongAdder;  public class GFG {    public static void main(String args[])    {          // Initialized with 0        LongAdder num = new LongAdder();          // Print the initial value        System.out.println("Initial value is: "                           + num);          // Add 6 to it        num.add(6);          // Print the final value        System.out.println("After addition"                           + " of 6, value is: "                           + num);          // Add 5 to it        num.add(5);          // Print the final value        System.out.println("After addition"                           + " of 5, value is: "                           + num);          // sum operation on num        num.sum();          // Print after sum        System.out.println("Returned sum value is: "                           + num);    }} |
Output:
Initial value is: 0 After addition of 6, value is: 6 After addition of 5, value is: 11 Returned sum value is: 11
Program 2:
// Java program to demonstrate// the LongAdder.sum() method  import java.lang.*;import java.util.concurrent.atomic.LongAdder;  public class GFG {    public static void main(String args[])    {          // Initialized with 0        LongAdder num = new LongAdder();          // Print the initial value        System.out.println("Initial value is: "                           + num);          // Add 10 to it        num.add(10);          // Print the final value        System.out.println("After addition"                           + " of 10, value is: "                           + num);          // Add 100 to it        num.add(100);          // Print the final value        System.out.println("After addition"                           + " of 100, value is: "                           + num);          // sum operation on num        num.sum();          // Print after sum        System.out.println("Returned sum value is: "                           + num);    }} |
Output:
Initial value is: 0 After addition of 10, value is: 10 After addition of 100, value is: 110 Returned sum value is: 110
