The java.DoubleAdder.intValue() is an inbuilt method in java that returns the sum() as an int after a narrowing primitive conversion. When the object of the class is created its initial value is zero.
Syntax:
public int intValue()
Parameters: This method does not accepts any parameter.
Return Value: The method returns the numeric value represented by this object after conversion to int data type.
Below programs illustrate the above function:
Program 1:
// Program to demonstrate the intValue() 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(11);        num.add(10);          // intValue operation on variable num        num.intValue();          // Print after intValue operation        System.out.println("the value after intValue() is: " + num);    }} |
Output:
the value after intValue() is: 21.0
Program 2:
// Program to demonstrate the intValue() 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(11);          // intValue operation on variable num        num.intValue();          // Print after intValue operation        System.out.println("the value after intValue() is: " + num);    }} |
Output:
the value after intValue() is: 11.0
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/DoubleAdder.html#intValue–
