title: Java BigDecimal: Round to the nearest whole value
body: <p>I need the following results</p>
  
  <pre><code>100.12 -&gt; 100.00
  100.44 -&gt; 100.00
  100.50 -&gt; 101.00
  100.75 -&gt; 101.00
  </code></pre>
  
  <p><code>.round()</code> or <code>.setScale()</code> ? How do I go about this?</p>