Pastable version of Rubyize this : 4th edition

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            <pre class="sunburst"><span style="color:#E28964;">class</span> <span style="text-decoration:underline;">Bug</span>
	<span style="color:#E28964;">attr_accessor</span> <span style="color:#3387CC;"><span style="color:#3387CC;">:</span>type</span>
	<span style="color:#E28964;">attr_accessor</span> <span style="color:#3387CC;"><span style="color:#3387CC;">:</span>name</span>
	<span style="color:#E28964;">attr_accessor</span> <span style="color:#3387CC;"><span style="color:#3387CC;">:</span>iq</span>
	<span style="color:#E28964;">attr_accessor</span> <span style="color:#3387CC;"><span style="color:#3387CC;">:</span>annoyance_factor</span>	
	
	<span style="color:#E28964;">def</span> <span style="color:#89BDFF;">initialize</span>(<span style="color:#3E87E3;">name<span style="color:#3E87E3;">,</span>type<span style="color:#3E87E3;">,</span>iq<span style="color:#3E87E3;">,</span>annoyance_factor</span>)
		<span style="color:#E28964;">if</span> <span style="color:#E28964;">!</span>type
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>type</span><span style="color:#E28964;">=</span><span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>spider<span style="color:#65B042;">&quot;</span></span>
		<span style="color:#E28964;">else</span>
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>type</span><span style="color:#E28964;">=</span>type
		<span style="color:#E28964;">end</span>
		
		<span style="color:#E28964;">if</span> <span style="color:#E28964;">!</span>name
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>name</span><span style="color:#E28964;">=</span><span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>unnamed<span style="color:#65B042;">&quot;</span></span>
		<span style="color:#E28964;">else</span>
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>name</span><span style="color:#E28964;">=</span>name
		<span style="color:#E28964;">end</span>		
		
		<span style="color:#E28964;">if</span> <span style="color:#E28964;">!</span>iq
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>iq</span> <span style="color:#E28964;">=</span> <span style="color:#3387CC;">8</span>
		<span style="color:#E28964;">else</span>
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>iq</span> <span style="color:#E28964;">=</span> iq
		<span style="color:#E28964;">end</span>
		
		<span style="color:#E28964;">if</span> <span style="color:#E28964;">!</span>annoyance_factor
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>annoyance_factor</span> <span style="color:#E28964;">=</span> <span style="color:#3387CC;">4</span>
		<span style="color:#E28964;">else</span>
			<span style="color:#3E87E3;"><span style="color:#3E87E3;">@</span>annoyance_factor</span> <span style="color:#E28964;">=</span> annoyance_factor
		<span style="color:#E28964;">end</span>	
	<span style="color:#E28964;">end</span>	
<span style="color:#E28964;">end</span>

<span style="color:#E28964;">def</span> <span style="color:#89BDFF;">keep_butterflies</span>(<span style="color:#3E87E3;">bugs</span>)
	butterflies <span style="color:#E28964;">=</span> <span style="color:#9B859D;">Array</span>.<span style="color:#89BDFF;">new</span>
	bugs.<span style="color:#89BDFF;">each</span> <span style="color:#E28964;">do </span>|<span style="color:#3E87E3;">bug</span>|
		<span style="color:#E28964;">if</span> bug.<span style="color:#89BDFF;">type</span> <span style="color:#E28964;">==</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>butterfly<span style="color:#65B042;">&quot;</span></span>
			butterflies.<span style="color:#89BDFF;">push</span>(bug)
		<span style="color:#E28964;">end</span>
	<span style="color:#E28964;">end</span>	
	<span style="color:#E28964;">return</span> butterflies
<span style="color:#E28964;">end</span>

<span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">#</span>create some bugs!</span>
bugs <span style="color:#E28964;">=</span> <span style="color:#9B859D;">Array</span>.<span style="color:#89BDFF;">new</span>
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>ron<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>spider<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>4<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>2<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>don<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>spider<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>2<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>3<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>jake<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>ant<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>9<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>4<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>chris<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>ladybug<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>2<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>4<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>fred<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>cockchaffer<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>0<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>5<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>greg<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>butterfly<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>2<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>0<span style="color:#65B042;">&quot;</span></span>))
bugs.<span style="color:#89BDFF;">push</span>(<span style="color:#9B859D;">Bug</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>jason<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>butterfly<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>0<span style="color:#65B042;">&quot;</span></span>,<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>2<span style="color:#65B042;">&quot;</span></span>))

butterflies<span style="color:#E28964;">=</span><span style="color:#89BDFF;">keep_butterflies</span>(bugs)

butterflies.<span style="color:#89BDFF;">each</span> <span style="color:#E28964;">do </span>|<span style="color:#3E87E3;">butterfly</span>|
	puts <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>I am a butterfly and my name is <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>butterfly<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">.</span><span style="color:#89BDFF;">name</span></span><span style="color:#DAEFA3;">}</span></span>. I have an IQ of <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>butterfly<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">.</span><span style="color:#89BDFF;">iq</span></span><span style="color:#DAEFA3;">}</span></span> and an annoyance factor of <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>butterfly<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">.</span><span style="color:#89BDFF;">annoyance_factor</span></span><span style="color:#DAEFA3;">}</span></span><span style="color:#65B042;">&quot;</span></span>
<span style="color:#E28964;">end</span>
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