class Rectangle extends Shape$\{$

private double width;

private doubld length;

public Rectangle$()\{$

this.width$=0$;

this.height$=0$;

$\}$

public Rectangle$($String color,boolean filled,double width,double length$)\{$

super$($color$,$filled$)$;

this.width$=$width;

this.length$=$length;

$\}$

@Override

double getArea$()\{$

return width$*$length;

$\}$

@Override

double getPerimeter$()\{$

return $2*($width$+$length$)$;

$\}$

@Override

public String toString$()\{$

return "Rectangle$[$width$="+$ width $+",$ height$="+$ height $+"]"$;

public boolean equals$($Rectangle obj$)\{$

if $($this $==$ obj$)$

return true;

if $($obj $==$ null$)$

return false;

if $($getClass$()!=$ obj.getClass$())$

return false;

Rectangle other $=$ Rectangle obj;

if $($filled $!=$ other.filled$)$

return false;

if $($color $==$ null$)\{$

if $($other$.$color $!=$ null$)$

return false;

$\}$ else if $(!$color.equals$($other$.$color$))$

return false;

return true;

$\}$

$\}$