void Circle::setRadius$($int r$)\{$

if $($r $>=1)\{$

radius $=$ r;

$\}$ else $\{$

std::cerr $<<$ "Error: Radius must be $1$ or greater." $<<$ std::endl;

$\}$

$\}$

int Circle::getRadius$()$ const $\{$

return radius;

$\}$

void Circle::setColorFill$($const std::string& color$)\{$

if $(!$color.empty$())\{$

colorFill $=$ color;

$\}$ else $\{$

std::cerr $<<$ "Error: Fill color cannot be blank." $<<$ std::endl;

$\}$