The square and Triangle classes shown above will be used for remainder of the questions.$$

$9.$ Which code snippet correctly implements the parametrized A$)$ Square constructor which takes in x$,$ y$,$ and side?

Square$($float x$,$ float y$,$ float side$)\{$ this $->$side $=$ side;$\}$

B$)$ Square$($float x$,$ float y$,$ float side$)$ : Shape$($x$,$ y$)\{$ this $->$side $=$ side;$\}$

C$)$ Square$($float x$,$ float y$,$ float side$)\{$ this $->$x $=$ x; this $->$y $=$ y; this $->$side $=$ side; $\}$

D$)$ All of the above$$

E$)$ Only B and C

$10.$ Which code snippet correctly implements the draw method for the Square class?$$

A$)$ void draw$()\{$

glColor$3$f$($color$.$r$,$ color.g$,$ color.b$)$;

glBegin$($GL$\_$POLYGON$)$; glVertex$2$f$($getX$(),$ getY$())$; glVertex$2$f$($getX$()+$ side, getY$())$; glVertex$2$f$($getX$()+$ side, getY$()-$ side$)$; glVertex$2$f$($getX$(),$ getY$()-$ side$)$;

glEnd $()$; $\}$

B$)$ void draw$()\{$

glColor$3$f$($color$.$r$,$ color.g$,$ color.b$)$;

glBegin$($GL$\_$POLYGON$)$;

glVertex$2$f$($x$,$ y$)$;

glVertex$2$f$($x $+$ side, y$)$; glVertex$2$f$($x $+$ side, y $-$ side$)$; glVertex$2$f$($x$,$ y $-$ side$)$;

glEnd $()$; $\}$

C$)$ void draw$()\{$

Color c $=$ getColor $()$;

glColor$3$f$($c$.$r$,$ c$.$g$,$ c$.$b$)$;

glBegin$($GL$\_$POLYGON$)$; glVertex$2$f$($getX$(),$ getY$())$; glVertex$2$f$($getX$()+$ side, getY$())$; glVertex$2$f$($getX$()+$ side, getY$()-$ side$)$; glVertex$2$f$($getX$(),$ getY$()-$ side$)$;

glEnd $()$; $\}$

D$.$ All of the above$$

E$.$ Only A and C

$11.$ Which code snippet correctly implements the parametrized Triangle constructor which takes in x$,$ y$,$ base, and height?

A$)$ Triangle$($float x$,$ float y$,$ float base, float height$)\{$

setX$($x$)$;

setY$($y$)$;

this $->$base $=$ base; this$->$height $=$ height;

$\}$

B Triangle$($float x$,$ float y$,$ float base, float height$)$ : Shape$($x$,$y$)\{$

this $->$base $=$ base;

this$->$height $=$ height; $\}$

C$)$ Triangle$($float x$,$ float y$,$ float base, float height$)\{$

this $->$x $=$ x;

this $->$y $=$ y; this$->$base $=$ this$->$height; $)$

D$)$ All of the above$$

E$)$ Only A and B

$12.$ Which code snippet correctly implements the parametrized Triangle constructor which takes in x$,$ y$,$ and color?

A$)$ Triangle$($float x$,$ float y$,$ Color color$)\{$ this $->$x $=$ x;

this $->$y $=$ y; this$->$color $=$ color; base $=0\mathrm{.}3$f;

height $=0\mathrm{.}2$f;$\}$

B$)$ Triangle$($float x$,$ float y$,$ Color color$)\{$ setX$($x$)$;

setY$($y$)$; setColor$($color$)$; base $=0\mathrm{.}3$f; height $=0\mathrm{.}2$f;$\}$

C$)$ Triangle$($float x$,$ float y$,$ Color color$)$ : Shape$($x$,$ y$)\{$ this$->$color $=$ color; base $=0\mathrm{.}3$f; height $=0\mathrm{.}2$f; $\}$

D$)$ Triangle$($float x$,$ float y$,$ Color color$)$ : Shape$($x$,$ y$,$ color$)\{$ base $=0\mathrm{.}3$f; height $=0\mathrm{.}2$f; $\}$

E$)$ All of the above, except A

$13.$ Which of the following statements is false?

A$.$ Triangle publicly inherits from Shape.

B$.$ Square publicly inherits from Shape.

C$.$ Shape is the parent of both Triangle and Square

D$.$ Triangle and Square need to implement their own draw method. E$.$ All of the above statements are true.

$14.$ Which data members of Shape are accessible to Triangle and Square? A$.$ xandy

B$.$ color

C$.$ x$,$ y$,$ and color D$.$ None of the above

$15.$ Which code snippet correctly creates an instance of Square, not on the heap?

A$)$ Square$*$ square $=$ new Square$()$;$$

B$)$ Square square $=$ Square $()$;$$

C$)$ Shape$*$ shape $=$ new Square$()$;

D$)$ Shape shape $=$ Square $()$;

E$)$ Both B and D

$16.$ Which code snippet correctly creates an instance of Triangle on the heap?

A$)$ Triangle$*$ triangle $=$ new Triangle$()$;$$

B$)$ Triangle triangle $=$ Triangle $()$;$$

C$)$ Shape$*$ shape $=$ new Triangle$()$;

D$)$ Shape shape $=$ Triangle $()$;

E$)$ Both A and C

$17.$ Which code snippet correctly creates an array of Squares of size $7,$ on the heap?

A$)$ Square$*$ squares$[7]$;

B$)$ Square$*$ squares $=$ new Square$[7]$;$$

C$)$ Square squares $*[7]$;

D$)$ Square$*$ squares$*[7]$;

E$)$ Both A and B

$18.$ Which code snippet correctly releases the memory from the previous question?

A$)$ delete squares;

B$)$ delete$[]$ squares;

C$)$ for $($int i $=0$; i $<mtext></mtext><mn>7</mn>$; i$++)\{$ delete squares$[$i$]$;$\}$

D$)$ for $($int i $=0$; i $<mtext></mtext><mn>7</mn>$; i$++)\{$ delete squares$[$i$]$;$\}$ delete$[]$ squares;

E$)$ None of the above

$19.$ Which code snippet correctly creates an array of Shape pointers of size $7?$

A$)$ Shape shapes $[7]$;

B$)$ Shape shapes $*[7]$;

C$)$ Shape $**$ shapes $=$ new Shape $[7]$;

D$)$ Shape $**$ shapes $=$ new Shape $*[7]$;

E$)$ Both C and D

$20.$ Which code snippet correctly releases the memory from the previous question?

A$)$ delete shapes;

B$)$ delete$[]$ shapes;

C$)$ for $($int i $=0$; i $<mtext></mtext><mn>7</mn>$; i$++)\{$ delete shapes$[$i$]$;$\}$

D$)$ for $($int i $=0$; i $<mtext></mtext><mn>7</mn>$; i$++)\{$ delete shapes$[$i$]$; $\}$ delete$[]$ shapes;

E$)$ None of the above