Convert the example of GEOMETRY_OBJECTS given in section 11.1.5 from the functional notation to the notation given in Figure 11.2 that distinguishes between attributes and operations. Use the keyword INHERIT to show that one class inherits from another class.

Question

What will be an ideal response?

Answer 1

```
(GEOMETRY_OBJECTS to attribute/operation)
define class GEO_OBJECT:
type tuple ( shape : enumerated(rectangle, triangle, circle);
refpoint : tuple ( x: float,
y: float) );
operations area : float;
end GEO_OBJECT;
define class RECTANGLE:
INHERITS GEO_OBJECT;
type tuple ( width : float,
height: float);
operations square? : boolean;
end RECTANGLE;
define class TRIANGLE:
INHERITS GEO_OBJECT;
type tuple ( side1 : float,
side2 : float,
angle : float );
end TRIANGLE;
define class CIRCLE:
INHERITS GEO_OBJECT;
type tuple ( radius : float );
operations diameter : float;
ci rcumference : float;
end CIRCLE;
```