I'm trying to complete this code where I need to calculate the density using the mass/volume the user inputs. I have to use two different methods, and call the second method, but when I try to it says, "The method calculateDensity(double[], double[]) in the type Density is not applicable for the arguments ()" W

What's causing the error? This is my code:

```
import java.util.Scanner;

public class Density {

    public static void main(String[] args) {
        System.out.println("Enter the mass and volume for your 3 compounds.");

        for(int i = 0; i < 3; i++) {

            Scanner s = new Scanner(System.in);

            double[] volume= new double[3]; 
            volume [i]=s.nextDouble(); // registers user input for volume

        } //end for loop

        calculateDensity();

    } // end main

    public static void calculateDensity(double[] mass, double[] volume) {
//

    } // end calculate density 

} // end class

```