title: How safe is it to remove the "-" in a randomly generated UUID?
body: <p>I have this code:</p>
  
  <pre><code>String uuid = UUID.randomUUID().toString().replace("-", "");
  </code></pre>
  
  <p>How safe is it to remove the "-" in the generated UUID? Would removing it defeat the purpose of it being globally unique and make the generated UUID prone to collisions?</p>