Now we combine both methods into a test program. Note that both methods are contained in the same class. Also note the comment that

describes the behavior of the cubeVolume method. $($Programming Tip $5\mathrm{.}2\mathrm{.}1$ describes the format of the comment.$)$

zyDE $5\mathrm{.}2\mathrm{.}1$: Cubes.java.

Cubes.java

$/**$

This program computes the volumes of two cubes.

$*/$

public class Cubes

$\{$

public static void main$($String$[]$ args$)$

$\{$

double result$1=$ cubeVolume$(2)$;

double result$2=$ cubeVolume$(10)$;

System.out.println$("$A cube with side length $2$ has volume $"+$ result$1)$;

System.out.println$("$A cube with side length $10$ has volume $"+$ result$2)$;

$\}$

$/**$

Computes the volume of a cube.

@param sideLength the side length of the cube

@return the volume

$*/$

public static double cubeVolume$($double sideLength$)$

$\{$

double volume $=$ sideLength $*$ sideLength $*$ sideLength;

return volume;

$\}$

$\}$