title: how know pressed key is character only in javafx
body: <p>how know pressed key from Key Board is character only in javafx.
  i want to handle following condition</p>
  
  <pre><code> if(event.isControlDown()  &amp;&amp; event.getCode().ISCHARACTERKEY()){
  
  // some Code
  }
  </code></pre>
  
  <p>ISCHARACTERKEY() include A-Z or a-z only.
  is Javafx provide ISCHARACTERKEY()  type of inbuilt method?</p>