title: Read several files at the same time Java
body: <p>I would like to read several files at the same time in Java. 
  I have for example 5 files, and each file has 50 lines (but I cann't know it in advance). </p>
  
  <p>I would like to read the line number 1 on each file, then the line number 2 on each file etc..</p>
  
  <p>How can I do it ?</p>
  
  <p>I have a BufferedReader array like :</p>
  
  <pre><code>BufferedReader[] readers = new BufferedReader[x]; 
  </code></pre>