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create web page online create web page online Ruby looks in KaraokeSong for a method called to_s, but doesn't find it. The interpreter then looks in KaraokeSong's parent, classSong, and there it finds the to_s method that we defined on page 18. That's why it prints out the song details but not the lyrics---class Song doesn't know anything about lyrics. Let's fix this by implementing KaraokeSong#to_s. There are a number of ways to do this.

create web page online Let's start with a bad way. We'll copy the to_s method from Song and add on the lyric. class KaraokeSong   # ...

create web page online   def to_s     "KS: #{@name}--#{@artist} (#{@duration}) [#{@lyrics}]"   end end aSong = KaraokeSong.new("My Way", "Sinatra", 225, "And now, the...") aSong.

create web page online to_s » "KS: My Way--Sinatra (225) [And now, the...]" We're correctly displaying the value of the @lyrics instance variable. To do this, the subclass directly accesses the instance variables of its ancestors.

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