title: Find closest object in Java collection
body: <p>I have a collection with objects that contain certain <code>int</code> field.</p>
  
  <p>eg.</p>
  
  <pre><code>public class Foo {
      public int field;
  }
  </code></pre>
  
  <p>I would like to get an element that has closest value to certain value (eg. <code>42</code>).</p>
  
  <p>Is there any neat method from guava to achieve such thing?</p>