class Song
include Comparable
@@plays = 0
attr_reader :name, :artist, :duration
attr_writer :duration
def initialize(name, artist, duration)
@name = name
@artist = artist
@duration = duration
@plays = 0
end
def to_s
"Song: #@name--#@artist (#@duration)"
end
def play
@plays += 1
@@plays += 1
"This song: #@plays plays. Total #@@plays plays."
end
def record
"Recording..."
end
def inspect
self.to_s
end
def <=>(other)
self.duration <=> other.duration
end
end
|