Getting `initialize': wrong number of arguments(1 for 0) (ArgumentError) for simple ruby app

Question

This is my first ruby app. And I am a stack overflow virgin... When I run the following program:

class NameApp

def intialize(name)
    @names = []
end

def name_question
    print "What is your name? "
    answer = gets.chomp
    @names += answer.to_s
    puts "The number of characters in your name is " + names.length
end


def name_length
    if @names.length > 25 then 
        print "Your name is longer than 25 characters."
    else 
        print "Your name is too short."
    end
end

end

name_app = NameApp.new("Test1")
name_app.class # => NameApp

name_app.name_question
name_app.name_length

I get this simple error message result:

name.rb:26:in `initialize': wrong number of arguments(1 for 0) (ArgumentError)
from nameapp.rb:26:in `new'
from nameapp.rb:26:in `<main>'

Can you help me trouble shoot?

Answer 1

You spelled "initialize" wrong. I did that a few times too when I was starting out, and that was hard to debug. Why ruby didn't name it "init", I'll never know.

Answer 2

Since you have not defined the method initialize for NameApp, by default, it takes zero arguments, but you passed one argument "Test1" via the constructor new.