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@noytdm1021

【備忘録】Ruby : 継承(override,super)

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https://qiita.com/noytdm1021/items/9e3a5d67234fd6a904c1 の追記

sample.rb

class Greeting
    def hello
        puts "こんにちは #{@name}さん"
    end

end

class User < Greeting
    # Greeting を継承
    def initialize(name)
        @name = name
    end

    def hello
        super
        # super で親クラスの hello メソッド呼び出し
        # override
        puts "Hello. #{@name}."
    end
end

user = User.new("Tanaka")
user.hello
#=>こんにちは Tanakaさん
#=>Hello. Tanaka.
#どちらも出力


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