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<h3>Methods</h3>

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  <li ><a href="#method-c-new">::new</a>

  <li ><a href="#method-i-each">#each</a>

  <li ><a href="#method-i-obtenerValor">#obtenerValor</a>

  <li ><a href="#method-i-pop">#pop</a>

  <li ><a href="#method-i-push">#push</a>

  <li ><a href="#method-i-sacarValor">#sacarValor</a>

  <li ><a href="#method-i-verDesdeCabeza">#verDesdeCabeza</a>

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<h1 id="class-Examenes::List" class="class">
  class Examenes::List
</h1>

<section class="description">

</section>

<section id="5Buntitled-5D" class="documentation-section">

  <section class="attribute-method-details" class="method-section">
    <header>
      <h3>Attributes</h3>
    </header>

    <div id="attribute-i-cabeza" class="method-detail">
      <div class="method-heading attribute-method-heading">
        <span class="method-name">cabeza</span><span
          class="attribute-access-type">[R]</span>
      </div>

      <div class="method-description">

      <p>Tres atributos, uno se situa al principio :cabeza, el otro al final :cola,

y los numeros de nodo total</p>

  </div>
</div>

<div id="attribute-i-cola" class="method-detail">
  <div class="method-heading attribute-method-heading">
    <span class="method-name">cola</span><span
      class="attribute-access-type">[R]</span>
  </div>

  <div class="method-description">

  <p>Tres atributos, uno se situa al principio :cabeza, el otro al final :cola,

y los numeros de nodo total</p>

  </div>
</div>

<div id="attribute-i-numeroNodos" class="method-detail">
  <div class="method-heading attribute-method-heading">
    <span class="method-name">numeroNodos</span><span
      class="attribute-access-type">[R]</span>
  </div>

  <div class="method-description">

  <p>Tres atributos, uno se situa al principio :cabeza, el otro al final :cola,

y los numeros de nodo total</p>

    </div>
  </div>

</section>

 <section id="public-class-5Buntitled-5D-method-details" class="method-section">
   <header>
     <h3>Public Class Methods</h3>
   </header>

  <div id="method-c-new" class="method-detail ">

    <div class="method-heading">
      <span class="method-name">new</span><span
        class="method-args">()</span>

      <span class="method-click-advice">click to toggle source</span>

    </div>

    <div class="method-description">

      <p>Inicializa los tres atributos.</p>

      <div class="method-source-code" id="new-source">
        <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 29</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>initialize</span>

<span class="ruby-ivar">@cabeza</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@cola</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@numeroNodos</span> = <span class="ruby-value">0</span>

<span class=“ruby-keyword”>end</span></pre>

      </div>

    </div>

  </div>

</section>

 <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
   <header>
     <h3>Public Instance Methods</h3>
   </header>

  <div id="method-i-each" class="method-detail ">

    <div class="method-heading">
      <span class="method-name">each</span><span
        class="method-args">() { |value| ... }</span>

      <span class="method-click-advice">click to toggle source</span>

    </div>

    <div class="method-description">

      <div class="method-source-code" id="each-source">
        <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 111</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>each</span>

<span class="ruby-identifier">nodo</span> = <span class="ruby-ivar">@cabeza</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">nodo</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">do</span>
  <span class="ruby-keyword">yield</span> <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">value</span>
  <span class="ruby-identifier">nodo</span> = <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">next</span>
<span class="ruby-keyword">end</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-obtenerValor" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">obtenerValor</span><span
      class="method-args">(numero)</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Obtiene un valor determinado</p>

    <div class="method-source-code" id="obtenerValor-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 98</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>obtenerValor</span>(<span class=“ruby-identifier”>numero</span>)

<span class="ruby-identifier">valor</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-identifier">i</span> = <span class="ruby-value">0</span>
<span class="ruby-identifier">nodo</span> = <span class="ruby-ivar">@cabeza</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">i</span> <span class="ruby-operator">&lt;</span> <span class="ruby-identifier">numero</span> <span class="ruby-keyword">do</span>
  <span class="ruby-identifier">i</span> = <span class="ruby-identifier">i</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
  <span class="ruby-identifier">valor</span> = <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">value</span>
  <span class="ruby-identifier">nodo</span> = <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> <span class="ruby-identifier">valor</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-pop" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">pop</span><span
      class="method-args">()</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Elimina los elmentos de la Lista</p>

    <div class="method-source-code" id="pop-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 52</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>pop</span>

<span class="ruby-keyword">if</span> <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span> <span class="ruby-keyword">then</span>
  <span class="ruby-ivar">@cabeza</span> = <span class="ruby-keyword">nil</span>
  <span class="ruby-ivar">@cola</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">else</span>
  <span class="ruby-ivar">@cabeza</span> = <span class="ruby-ivar">@cabeza</span>.<span class="ruby-identifier">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@numeroNodos</span> = <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-push" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">push</span><span
      class="method-args">(*valor)</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Introduce los elementos a la Lista</p>

    <div class="method-source-code" id="push-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 36</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>push</span>(<span class=“ruby-operator”>*</span><span class=“ruby-identifier”>valor</span>)

<span class="ruby-keyword">for</span> <span class="ruby-identifier">i</span> <span class="ruby-keyword">in</span> <span class="ruby-value">0</span><span class="ruby-operator">...</span><span class="ruby-identifier">valor</span>.<span class="ruby-identifier">length</span>
  <span class="ruby-identifier">nuevoNode</span> = <span class="ruby-constant">Node</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">valor</span>[<span class="ruby-identifier">i</span>], <span class="ruby-ivar">@nil</span>, <span class="ruby-keyword">nil</span>)
  <span class="ruby-keyword">if</span> <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-keyword">then</span>
    <span class="ruby-ivar">@cabeza</span> = <span class="ruby-identifier">nuevoNode</span>
    <span class="ruby-ivar">@cola</span> = <span class="ruby-identifier">nuevoNode</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-ivar">@cabeza</span>.<span class="ruby-identifier">previous</span> = <span class="ruby-identifier">nuevoNode</span>
    <span class="ruby-identifier">nuevoNode</span>.<span class="ruby-identifier">next</span> = <span class="ruby-ivar">@cabeza</span>
    <span class="ruby-ivar">@cabeza</span> = <span class="ruby-identifier">nuevoNode</span>       
  <span class="ruby-keyword">end</span>
  <span class="ruby-ivar">@numeroNodos</span> = <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">end</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-sacarValor" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">sacarValor</span><span
      class="method-args">()</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Obtiene el valor correspondiente</p>

    <div class="method-source-code" id="sacarValor-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 63</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>sacarValor</span>

<span class="ruby-ivar">@valor</span> = <span class="ruby-ivar">@cabeza</span>.<span class="ruby-identifier">value</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span> <span class="ruby-keyword">then</span>
  <span class="ruby-ivar">@cabeza</span> = <span class="ruby-keyword">nil</span>
  <span class="ruby-ivar">@cola</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">else</span>
  <span class="ruby-ivar">@cabeza</span> = <span class="ruby-ivar">@cabeza</span>.<span class="ruby-identifier">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@numeroNodos</span> = <span class="ruby-ivar">@numeroNodos</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">return</span> <span class="ruby-ivar">@valor</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-verDesdeCabeza" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">verDesdeCabeza</span><span
      class="method-args">()</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Muestra la lista empezando desde la cabeza</p>

    <div class="method-source-code" id="verDesdeCabeza-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 76</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>verDesdeCabeza</span>

<span class="ruby-identifier">salida</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-identifier">nodo</span> = <span class="ruby-ivar">@cabeza</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">nodo</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">do</span>
  <span class="ruby-identifier">salida</span> = <span class="ruby-identifier">salida</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">value</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">+</span> <span class="ruby-string">&quot; &quot;</span>
  <span class="ruby-identifier">nodo</span> = <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> <span class="ruby-identifier">salida</span>

<span class=“ruby-keyword”>end</span></pre>

    </div>

  </div>

</div>

<div id="method-i-verDesdeCola" class="method-detail ">

  <div class="method-heading">
    <span class="method-name">verDesdeCola</span><span
      class="method-args">()</span>

    <span class="method-click-advice">click to toggle source</span>

  </div>

  <div class="method-description">

    <p>Muestra la lista empezando por la cola</p>

    <div class="method-source-code" id="verDesdeCola-source">
      <pre><span class="ruby-comment"># File lib/Examenes/Listas.rb, line 87</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>verDesdeCola</span>

  <span class="ruby-identifier">salida</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-identifier">nodo</span> = <span class="ruby-ivar">@cola</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">nodo</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">do</span>
  <span class="ruby-identifier">salida</span> = <span class="ruby-identifier">salida</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">value</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">+</span> <span class="ruby-string">&quot; &quot;</span>
  <span class="ruby-identifier">nodo</span> = <span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">previous</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> <span class="ruby-identifier">salida</span>

<span class=“ruby-keyword”>end</span></pre>

        </div>

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    </div>

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