|
|
|
|
|
|
|
Define the Food class, with setters and getters, as shown in
Segment 455. Next, file out the Food class to a file.
Then, read the file using your favorite text editor, and replace the
fCalories, cCalories, and pCalories variables with
f, c, and p. Finally, exit from Smalltalk without
saving the image, start Smalltalk again, file in the altered file, and
examine the Food class using the class-hierarchy browser.