title: Big negative integer representation in a LinkedList
body: <p>My LinkedList represents big numbers by having one digit in each of the nodes.</p>
  
  <p>I can represent positive big integers in a LinkedList with this code:</p>
  
  <pre><code>public BigInteger(int x) 
  {
      list = new LinkedList&lt;Integer&gt;();
      while (x &gt; 0) 
      {
          list.push(( x % 10 ));
          x = x / 10;
      }
  }
  </code></pre>
  
  <p>Declaring:</p>
  
  <pre><code>BigInteger bigPositive = new BigInteger(91234) 
  </code></pre>
  
  <p>Produces: </p>
  
  <pre><code> [9,1,2,3,4]
  </code></pre>
  
  <p>However, I am not sure how to represent big negative integers such as -9321312345</p>