title: convert check mark "02713" UNIcode sign to String
body: <p>I know how to convet a simple ASCII code number to a String</p>
  
  <pre><code>int ascii = 112;      
  String sign = Character.toString((char)ascii);
  </code></pre>
  
  <p>but what about if I want to convert check mark  how can I do it?</p>
  
  <p><a href="http://www.fileformat.info/info/unicode/char/2713/index.htm" rel="nofollow noreferrer">http://www.fileformat.info/info/unicode/char/2713/index.htm</a> </p>
  
  <p><a href="https://www.w3.org/TR/MathML2/isopub.html" rel="nofollow noreferrer">https://www.w3.org/TR/MathML2/isopub.html</a></p>