You've been given $3$ java classes: Shape, Circle, and Rectangle.

Abstract classes can be used in instances where it doesn't make sense to create objects of that specific type. For instance, in this example, Rectangles and Circles are types of Shapes, but there isn't such a thing as a Shape that isn't also a more specific type of Shape.

Start by making the Shape class abstract$,$ and then try running your code.

Fix the code so that the variable type remains the same, but is being instantiated with either of the child class types, and move on to problem $2.$