title: How to type a square character in Xcode?
body: <p>How do I type a square character in Xcode? Not as program code but in a string.</p>
  
  <p>I tried to copy a character but its not working. I am still stuck with:</p>
  
  <pre><code>aCounty.area = @"301.338 km2";
  </code></pre>