streams-within-your-application-code" id="id2">Using Kafka Streams within your application code</a></li>
          <li><a class="reference internal" href="#testing-a-streams-app" id="id3">Testing a Streams application</a></li>
      </ul>
    <p>Any Java or Scala application that makes use of the Kafka Streams library is considered a Kafka Streams application.
      The computational logic of a Kafka Streams application is defined as a <a class="reference internal" href="../core-concepts#streams_topology"><