ing a concise, human-readable description of this
 object. Subclasses are encouraged to override this method and provide an
 implementation that takes into account the object's type and data. The
 default implementation is equivalent to the following expression:
 <pre>
   getClass().getName() + '@' + Integer.toHexString(hashCode())</pre>
 <p>See <a href="../../../../../reference/java/lang/Object.html#writing_toString">Writing a useful
 <code>toString</code> method</a>
 if you intend implementing your own <c