ect</code>
 usually override both methods or neither method.

 <p>Note that hash values must not change over time unless information used in equals
 comparisons also changes.

 <p>See <a href="../../../../../reference/java/lang/Object.html#writing_hashCode">Writing a correct
 <code>hashCode</code> method</a>
 if you intend implementing your own <code>hashCode</code> method.</p></div>
  <div class="jd-tagdata">
      <h5 class="jd-tagtitle">Returns</h5>
      <ul class="nolist"><li>this object's hash code.</