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copied!<p>A couple little tips...</p> <p>[1]</p> <p>A slightly more idiomatic way to write this...</p> <pre><code>for i in (1..36) lots[i] = Lot.new(i) end </code></pre> <p>would be...</p> <pre><code>(1..36).each { |i| lots[i] << Lot.new(i) } </code></pre> <p>[2]</p> <p>To remove a Guest from a Lot, you might want to set it to <code>nil</code> rather than <code>false</code>. This would be my suggestion...</p> <pre><code>class Lot def initialize(number) @gauge = rand(2000) + 2000 @number = number # Don't need to set @guest -- it's nil by default. end # In Ruby, methods that return a boolean often have a "?". # Makes it "read better" when you call the method. (See # usage sample.) def occupied? ! @guest.nil? end # There's a more commonplace way to do this. See below... def add_guest(guest) @guest = guest end def remove_guest() @guest = nil end end </code></pre> <p>Example of usage:</p> <pre><code>>> lot = Lot.new(2) => #<Lot:0x1300920 @number=2, @gauge=3444> >> lot.occupied => false >> lot.add_guest('A guest') => "A guest" >> lot.occupied? => true >> lot.remove_guest => nil >> lot.occupied? => false </code></pre> <p>Take two...</p> <p>It's conventional to use <code>attr_accessor</code> methods in your class definition. They automatically add getter and setter methods to your class. You could do that instead of <code>add_guest</code> and <code>remove_guest</code> if you wanted to follow the common Ruby pattern...</p> <pre><code>class Lot attr_accessor :number, :gauge, :guest def initialize(number) @gauge = rand(2000) + 2000 @number = number end def occupied? ! @guest.nil? end end </code></pre> <p>Usage...</p> <pre><code>irb(main):017:0> lot = Lot.new(3) => #<Lot:0xb7f7fca8 @gauge=3186, @number=3> </code></pre> <p>Set the Guest of a Lot (like <code>add_guest</code>)...</p> <pre><code>irb(main):019:0> lot.guest = 'A guest' => "A guest" irb(main):020:0> lot.occupied? => true </code></pre> <p>Get the Guest for a Lot...</p> <pre><code>irb(main):025:0> lot.guest => "A guest" </code></pre> <p>Remove the Guest...</p> <pre><code>irb(main):021:0> lot.guest = nil => nil irb(main):023:0> lot.occupied? => false </code></pre>

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