Java Code Example: volume and surface of a cube

This program calculates the volume and surface area of a cube. The user is prompted to input the edge length of the cube, which is then passed as an argument to the methods getVolume and getSurface. The methods getVolume and getSurface both take a single double argument a and return the volume and surface area of a cube with edge length a respectively. The returned values are then printed out to the console.

import java.util.Scanner;

public class VolumeAndSurfaceExample {
    static double getVolume(double a) {
        double volume;
        volume = a * a * a;
        return volume;
    }

    static double getSurface(double a) {
        double surface;
        surface = 6 * a * a;
        return surface;
    }

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        double edgeLength;

        System.out.println("Please enter the edge length: ");
        edgeLength = scan.nextInt();

        scan.close();
    
        System.out.println("Volume: " + getVolume(edgeLength));
        System.out.println("Surface: " + getSurface(edgeLength));
    }
}

Output

Please enter the edge length: 
5
Volume: 125.0
Surface: 150.0