Overloading (redefining) addition and how a variable is printed
Objects - Intermediate example from a Well House Consultants training course
More on Objects - Intermediate [link]
Source code: boxex Module: Y112
"""An enclosing box has three dimensions (x y and z).
If you add (stack) two enclosing boxes, the resulting
enclosing box has greater of the 2 x values, the greater
of the 2 y values and the SUM of the 2 z values.
Write a class of enclosing boxes and add two boxes
together to test it"""
def __init__ (self,x,y,z):
self.x = x
self.y = y
self.z = z
def __add__ (first,second):
retbox = box(first.x, first.y, first.z + second.z)
if first.x < second.x: retbox.x = second.x
if first.y < second.y: retbox.y = second.y
def __str__ (this):
return str(this.x)+" x "+str(this.y)+" x " + str(this.z)
bigmac = box(7,7,4)
fries = box(8,4,3)
meal = bigmac + fries
""" Runs like this:
-bash-3.2$ python boxex
8 x 7 x 7
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* Learning to program in Python
* Python Programming
* Intermediate Python
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