TY</code> if the instance doesn't
 have any low bound, <code>Double.POSITIVE_INFINITY</code> if the
 instance is empty)</dd></dl>
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<h4>getSup</h4>
<pre>public&nbsp;double&nbsp;getSup()</pre>
<div class="block">Get the highest value belonging to the instance.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>highest value belonging to the instance
 (<code>Double.POSITIVE_INFINITY</code> if the instance doesn