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PO+ is an undefined method after using super to call parent variables
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  1. PO+ is an undefined method after using super to call parent variables
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    copied!<p>This is a follow up from <a href="https://stackoverflow.com/questions/11092884/creating-a-class-which-inherits-from-another-class-in-ruby">Creating a class which inherits from another class in Ruby</a> and <a href="https://stackoverflow.com/questions/10944555/m-one-m-two-m-three-doesnt-work">m.one + m.two + m.three doesn't work</a>. We are applying for <a href="http://www.hashmaplabs.com/app_academy/code_test" rel="nofollow noreferrer">App Academy</a> which is a Learn to Code course for people with little or no experience. As a result, these questions are similar, but I felt the answers in the other two posts did not address an answer, but diverged to explaining tangential concepts (which I did utilize)</p> <p>To follow up on the first two mentioned links, I am having a problem with inherited classes. I have the Musician class which is inheriting three variables from the Person class. My problem is that when I run the </p> <pre><code>m.first_name + " " + m.last_name + ": " + m.age.to_s </code></pre> <p>I get an error: person.rb:31: undefined method `+' for nil:NilClass (NoMethodError). I understand that this error has the answer, but I am not yet adept at understanding what this means. </p> <p>One point to mention is that the query above, must be the way it is. I can not put Puts in front of it. </p> <p>I would appreciate any suggestions as to why I am getting this statement regarding + being an undefined method.</p> <p>Thanks!</p> <p>edit: Thanks for the quick response. I didnt realize the coding community was so active! This is really amazing. I am going to edit the code to reflect the newest issues, so I dont keep getting the same suggestions.</p>
 

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