From: Elton Li Date: 2001-05-28T16:40:04+09:00 Subject: [ruby-talk:15833] newbie question --------------C555268C072C26894FC261C3 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Why does the following prints 4.0 but prints 60.0 when the statement in durationInMinutes= is changed to @duration = (value*60).to_i or self.duration = (value*60).to_i? I thought it should print 60.0 in all three cases. ---------------------------------- class Song attr_reader :name, :artist, :duration attr_writer :duration, :artist def initialize(name1, artist1, duration1) @name = name1 @artist = artist1 @duration = duration1 end def to_s "Song: #{@name}--#{@artist} (#{@duration})" end def durationInMinutes duration/60.0 end def durationInMinutes=(value) duration = (value*60).to_i end end aSong = Song.new("New Song", "New ArtistShadows", 240) aSong.durationInMinutes = 60.0 print aSong.durationInMinutes.to_s --------------C555268C072C26894FC261C3 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Why does the following prints 4.0 but prints 60.0 when the statement in durationInMinutes= is changed to

@duration = (value*60).to_i
or
self.duration = (value*60).to_i?

I thought it should print 60.0 in all three cases.

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class Song
attr_reader :name, :artist, :duration
attr_writer :duration, :artist

def initialize(name1, artist1, duration1)
    @name   = name1
    @artist = artist1
    @duration = duration1
end

def to_s
"Song: #{@name}--#{@artist} (#{@duration})"
end

def durationInMinutes
duration/60.0
end

def durationInMinutes=(value)
duration = (value*60).to_i
end

end

aSong = Song.new("New Song", "New ArtistShadows", 240)
aSong.durationInMinutes = 60.0
print aSong.durationInMinutes.to_s --------------C555268C072C26894FC261C3--