title: Printing with "\t" (tabs) does not result in aligned columns
body: <p>I have a very weird problem. After writing this:</p>
  
  <pre><code>for (File f : currentFile.listFiles()) {            
      if  (f.isDirectory()){
          System.out.println(f.getName()+"\t"+"Dir\t"+Command.getpremission(f)+"\t"+f.getTotalSpace());
      }
      else{
          System.out.println(f.getName()+"\t"+"File\t"+Command.getpremission(f)+"\t"+f.getTotalSpace());
      }
  </code></pre>
  
  <p>I see this printed:</p>
  
  <pre><code>see.txt File    rw  267642728448
  see1.txt    File    rw  267642728456
  see2.txt    File    rw  267642728448
  </code></pre>
  
  <p>Why is there a problem with the tabs?</p>