title: Using Stream Writer to Add Numbers in text file
body: <p>I am using Stream Writer class and am trying to sum up all the numbers in my text file.
  My text file format is below:</p>
  
  <pre><code>name | number
  -------------
    a       2
    a       3
  </code></pre>
  
  <p>What I am trying to do is to print out the sum of the numbers but am struggling to grab the numbers. I was thinking about using a for loop to sum up the numbers but not sure where to start to grab the numbers only.</p>