Parameters in Ruby methods (Alex's Adventures in Rubyland) by Alexey Sologub

Author:Alexey Sologub [Sologub, Alexey]
Language: eng
Format: azw3
Published: 2018-02-16T16:00:00+00:00

def amout_of_eggs

"Some amount of eggs for Cake"

end

def amout_of_chocolate

"Some amount of chocolate for Cake"

end

end

class Pie < BakeryProducts

def amout_of_milk

"Some amout of milk for Pie"

end

def amout_of_sugar

"Some amount of sugar for Pie"

end

def amout_of_eggs

"Some amount of eggs for Pie"

end

def amout_of_chocolate

"Some amount of chocolate for Pie"

end

end

Description of the code:

We have defined 3 classes;

The BakeryProducts class has the attributes: :milk, :sugar, :eggs, :chocolate;

The Cake and Pie classes are inherited from the BakeryProducts class;

The initialize method, which is defined in the BakeryProducts class has parameters with default values;

As we see from the code, the default values are the names of the methods that are defined in the derived classes;

When we create an instance of the Cake class or the Pie class, the initialize method is automatically called, which computes the default values using the methods of those classes;

Also in the BakeryProducts class, the property method is defined that will allow us to see a value of the attributes.

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