interface in java.io" class="externalLink">IOException</a></pre>
<div class="block">Writes the ColGroups out to the DataOutput.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>out</code> - The DataOutput the ColGroups are written to</dd>
<dd><code>colGroups</code> - List of the ColGroups to write to file.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/IOException.html?is-external=true" t