title: Byte array to hex char array conversion
body: <p>My byte array is look like</p>
  
  <pre><code> byte[] x = { (byte) 0xff , (byte) 0x80  };
  </code></pre>
  
  <p>how can i convert it to char array {char[] y } where:-</p>
  
  <pre><code>y[0]='f';
  y[1] ='f' and so on
  </code></pre>