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  • The initialize method in Ruby

    @pranav.chhabra
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    This method is like a constructor of other object oriented programming languages.
    when you want to initialize some class variables while creating an object, we use this method.
    . like any other ruby method,it starts with def keyword

    1. class abc
    2.    def initialize(w,h)
    3.       @width, @height = w, h
    4.    end
    5. end

    Example

    1. class Evon
    2.    # constructor method
    3.    def initialize(w,h)
    4.       @width, @height = w, h
    5.    end
    6.  
    7.    # accessor methods
    8.    def printWidth
    9.       @width
    10.    end
    11.  
    12.    def printHeight
    13.       @height
    14.    end
    15. end
    16.  
    17. # create an object
    18. b = Evon.new(35, 45)
    19.  
    20. # use accessor methods
    21. x = b.printWidth()
    22. y = b.printHeight()
    23.  
    24. puts "Width of the box is : #{x}"
    25. puts "Height of the box is : #{y}"
    The initialize method in Ruby
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