title: Properties.containsKey returns false, why?
body: <pre><code>Properties segmentClients = new Properties();
  segmentClients.load(new FileInputStream(pathSegmentFile));
  
  segmentClients.containsKey(strANI); //returns false / strANI = "9202599784"
  </code></pre>
  
  <p>file is like this:</p>
  
  <pre><code># 01.2012
  9202599784
  9202599573
  9208552001
  9209374107
  9209374949
  </code></pre>
  
  <p>strANI = 9202599784</p>
  
  <p>why does it return false?</p>
  
  <p><strong>UPD</strong>: The problem was that file was in Unicode, after saving in ANSI started to work</p>