The Java.util.concurrent.atomic.AtomicLong.doubleValue() is an inbuilt method in java which returns the current value of the AtomicLong as a Double data-type after performing primitive conversion.
Syntax:
public double doubleValue()
Parameters: The function does not accepts any parameter.
Return value: The function returns the numeric value represented by this object after conversion to type double.
Below programs illustrate the above method:
Program 1:
// Java program that demonstrates// the doubleValue() function  import java.util.concurrent.atomic.AtomicLong;  public class GFG {    public static void main(String args[])    {          // Initially value as 0        AtomicLong val = new AtomicLong(0);          val.addAndGet(7);          // Prints the updated value        System.out.println("Previous value: "                           + val);          // Gets the double value        double res = val.doubleValue();          System.out.println("Double value: "                           + res);    }} |
Output:
Previous value: 7 Double value: 7.0
Program 2:
// Java program that demonstrates// the doubleValue() function  import java.util.concurrent.atomic.AtomicLong;  public class GFG {    public static void main(String args[])    {          // Initially value as 18        AtomicLong val = new AtomicLong(18);          val.addAndGet(7);          // Gets the double value        System.out.println("Previous value: "                           + val);          // Decreases the value by 1        double res = val.doubleValue();          System.out.println("Double value: "                           + res);    }} |
Output:
Previous value: 25 Double value: 25.0
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html#doubleValue–
