title: How to convert a number to 0.mynumber
body: <p>How can i convert a number to 0. and the number?</p>
  
  <p>so</p>
  
  <pre><code>int i = 50;
  float a = 0.i //wrong code :D
  </code></pre>
  
  <p>or what?
  how can i do it?</p>