title: FileInputStream doesn't work with the relative path
body: <p>I tried to create an object from <code>FileInputStream</code> and pass the relative value of a file to its constructor, but it doesn't work properly and threw a <code>FileNotFoundException</code> </p>
  
  <pre><code>try {
     InputStream is = new FileInputStream("/files/somefile.txt");
  } catch (FileNotFoundException ex) {
     System.out.println("File not found !");
  }
  </code></pre>