Question

Read the following pseudocode class definitions:

Class Plant

Public Module message()

Display "I'm a plant."

End Module

End Class

Class Tree Extends Plant

Public Module message()

Display "I'm a tree."

End Module

End Class

Given these class definitions, determine what the following pseudocode will display:

Declare Plant p

Set p = New Tree()

Call p.message()

Discuss how algorithms address object-oriented classes and objects.

the language is python.

Answer 1

This is called polymorphic behavior of the object , In Up casting (Assigning parent reference to Child object called up casting)

the method in parent class overrided by the Child class , In the following example message method is overrided by Tree class message method and execute its implementation...

/*******************************main.py*******************/

class Plant:
def message(self):
print( "I'm a plant.")

class Tree(Plant):
  
def message(self):
print("I'm a tree.") #overrided method
  
p = Tree()
p.message()#calling method by super class object reference but the method will overrided by subclass Tree

Please let me know if you have any doubt or modify the answer, Thanks:)