title: convert Map Values into String Array
body: <p>Here ,I am trying to convert map values into String array but i am getting  </p>
  
  <p>Error</p>
  
  <pre><code>ERROR/AndroidRuntime(23588): Caused by: java.lang.ClassCastException: [Ljava.lang.Object;
  </code></pre>
  
  <p>Code</p>
  
  <pre><code>Map&lt;String,String&gt; contactNumber = new HashMap&lt;String,String&gt;(); 
  
  String results [] =  (String[]) contactNumber.values().toArray();
  </code></pre>