title: Java mkdir + mkdirs always return false
body: <p>I'm trying to create a new dir in Java but it doesn't work. I'm wondering why because I tried <code>mkdir()</code> first and then I tried <code>mkdirs()</code> which is supposed to create unexistant directories.</p>
  
  <p>I wrote :</p>
  
  <pre><code>boolean status = new File("C:\\Users\\Hito\\Desktop\\test").mkdir();
  // status = false
  </code></pre>
  
  <p>then I wrote</p>
  
  <pre><code>boolean status = new File("C:\\Users\\Hito\\Desktop\\test").mkdirs();
  // status still = false.
  </code></pre>
  
  <p>A clue ? </p>