AtomicLong doubleValue() method in Java with examples

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:

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// 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);
    }
}

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Output:

Previous value: 7
Double value: 7.0

Program 2:

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// 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);
    }
}

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Output:

Previous value: 25
Double value: 25.0

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html#doubleValue–




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