$10.$ Modify the following code to generate the given output. Do not modify the main

function.

$1.$ #include $<$ iostream $>$

$2.$ using namespace std;

$3.$

$4.$ class box $\{$

$5.$

$6.$ public:

$7.//$ Constructor definition

$8.$ box$($double l $=2\mathrm{.}0,$ double b $=2\mathrm{.}0,$ double h $=2\mathrm{.}0)\{$

$9.$ length $=$ l;

$10.$ breadth $=$ b;

$11.$ height $=$ h;

$12.\}$

$13.$

$14.$ double volume$()\{$

$15.$ return length $*$ breadth $*$ height; $\}$

$16.$

$17.$ private:

$18.$ double length; $//$ Length of a box

$19.$ double breadth; $//$ Breadth of a box

$20.$ double height; $//$ Height of a box

$21.\}$;

$22.$

$23.$ int main$($void$)\{$

$24.$ box Box$1(3\mathrm{.}3,1\mathrm{.}2,1\mathrm{.}5)$; $//$ Declare box$1$

$25.$

$26.$ box Box$2(8\mathrm{.}5,6\mathrm{.}0,2\mathrm{.}0)$; $//$ Declare box$2$

$27.$

$28.$ return $0$;

$29.\}$

Output:

Number of box objects created so far: $1$

Number of box objects created so far: $2$