Basic HTML version of Foils prepared 13 July 98

Foil 57 A Subclass of Polygon

From Java Academy II:Intermediate Java NPAC/ECS Java Academy -- February to April 98. by Tom Scavo
The HexagonTest Applet
The new version of addPoint(...) defined in the Octagon class belongs in all subclasses of Polygon
It would be unwise to do so, however (why?)
Thus, in the next example (Hexagon), we define a subclass of Polygon called MyPolygon, which itself is subclassed by the Hexagon class

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