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<div class="section" id="run-mxnet-scala-examples-using-the-intellij-ide">
<span id="run-mxnet-scala-examples-using-the-intellij-ide"></span><h1>Run MXNet Scala Examples Using the IntelliJ IDE<a class="headerlink" href="#run-mxnet-scala-examples-using-the-intellij-ide" title="Permalink to this headline"></a></h1>
<p>This tutorial guides you through setting up a Scala project in the IntelliJ IDE and shows how to use an MXNet package from your application.</p>
<div class="section" id="prerequisites">
<span id="prerequisites"></span><h2>Prerequisites:<a class="headerlink" href="#prerequisites" title="Permalink to this headline"></a></h2>
<p>To use this tutorial, you need:</p>
<ul class="simple">
<li><a class="reference external" href="https://maven.apache.org/install.html">Maven 3</a>.</li>
<li><a class="reference external" href="https://www.scala-lang.org/download/2.11.8.html">Scala 2.11.8</a>.</li>
<li>MXNet. See the instructions for your operating system in <a class="reference external" href="https://mxnet.incubator.apache.org/versions/0.12.0/get_started/install.html">Setup and Installation</a>.</li>
<li>The MXNet package for Scala. For installation instructions, see <a class="reference external" href="https://mxnet.incubator.apache.org/versions/0.12.0/get_started/osx_setup.html#install-the-mxnet-package-for-scala">this procedure</a>.</li>
<li><a class="reference external" href="https://www.jetbrains.com/idea/">IntelliJ IDE</a>.</li>
</ul>
</div>
<div class="section" id="set-up-your-project">
<span id="set-up-your-project"></span><h2>Set Up Your Project<a class="headerlink" href="#set-up-your-project" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Install the plugin for IntelliJ IDE by following these steps:
On <strong>Menu</strong>, choose <strong>Preferences</strong>, choose <strong>Plugins</strong>, type <strong>Scala</strong>, and then choose <strong>Install</strong>.</li>
<li>Follow the instructions for <a class="reference external" href="https://www.jetbrains.com/help/idea/2016.3/scala.html">Scala plugin setup for IDE</a>.</li>
<li>When you build the MXNet package with Scala, a JAR file called <code class="docutils literal"><span class="pre">mxnet-full_${scala.binary.version}-${platform}</span></code> is generated in <code class="docutils literal"><span class="pre">native/<your-architecture>/target</span></code> directory. You need this file to create an example package that has a dependency on MXNet.</li>
<li>Specify project dependencies in pom.xml:</li>
</ul>
<div class="highlight-HTML"><div class="highlight"><pre><span></span> <span class="p"><</span><span class="nt">dependencies</span><span class="p">></span>
<span class="p"><</span><span class="nt">dependency</span><span class="p">></span>
<span class="p"><</span><span class="nt">groupId</span><span class="p">></span>ml.dmlc.mxnet<span class="p"></</span><span class="nt">groupId</span><span class="p">></span>
<span class="p"><</span><span class="nt">artifactId</span><span class="p">></span>mxnet-full_${scala.binary.version}-${platform}<span class="p"></</span><span class="nt">artifactId</span><span class="p">></span>
<span class="p"><</span><span class="nt">version</span><span class="p">></span>0.1.1<span class="p"></</span><span class="nt">version</span><span class="p">></span>
<span class="p"><</span><span class="nt">scope</span><span class="p">></span>system<span class="p"></</span><span class="nt">scope</span><span class="p">></span>
<span class="p"><</span><span class="nt">systemPath</span><span class="p">></span>`MXNet-Scala-jar-path`<span class="p"></</span><span class="nt">systemPath</span><span class="p">></span>
<span class="p"></</span><span class="nt">dependency</span><span class="p">></span>
<span class="p"><</span><span class="nt">dependency</span><span class="p">></span>
<span class="p"><</span><span class="nt">groupId</span><span class="p">></span>args4j<span class="p"></</span><span class="nt">groupId</span><span class="p">></span>
<span class="p"><</span><span class="nt">artifactId</span><span class="p">></span>args4j<span class="p"></</span><span class="nt">artifactId</span><span class="p">></span>
<span class="p"><</span><span class="nt">version</span><span class="p">></span>2.0.29<span class="p"></</span><span class="nt">version</span><span class="p">></span>
<span class="p"></</span><span class="nt">dependency</span><span class="p">></span>
<span class="p"></</span><span class="nt">dependencies</span><span class="p">></span>
</pre></div>
</div>
<p>Be sure to change the system path of MXNet-Scala-jar, which is in the <code class="docutils literal"><span class="pre">native/<your-architecture>/target</span></code> directory.</p>
<ul class="simple">
<li>Choose the example project, choose Maven, and then reimport. These steps add all of the dependencies in pom.xml as external libraries in your project.</li>
<li>To build the project, choose Menu, choose Build, and then choose Rebuild Project. If errors are reported in the IDE, address them.</li>
<li>You can also compile the project by using the following command at the command line.</li>
</ul>
<div class="highlight-bash"><div class="highlight"><pre><span></span> <span class="nb">cd</span> mxnet-scala-example
mvn clean package
</pre></div>
</div>
<ul class="simple">
<li>This also generates a file called mxnet-scala-example-0.1-SNAPSHOT.jar for your application.</li>
</ul>
</div>
<div class="section" id="next-steps">
<span id="next-steps"></span><h2>Next Steps<a class="headerlink" href="#next-steps" title="Permalink to this headline"></a></h2>
<p>For more information about MXNet Scala resources, see the following:</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference external" href="https://mxnet.incubator.apache.org/versions/0.12.0/api/scala/">Scala API</a></li>
<li class="toctree-l1"><a class="reference external" href="https://github.com/dmlc/mxnet/tree/master/scala-package/examples/">More Scala Examples</a></li>
<li class="toctree-l1"><a class="reference external" href="https://mxnet.incubator.apache.org/versions/0.12.0/tutorials/index.html">MXNet tutorials index</a></li>
</ul>
</div>
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<h3><a href="../../index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Run MXNet Scala Examples Using the IntelliJ IDE</a><ul>
<li><a class="reference internal" href="#prerequisites">Prerequisites:</a></li>
<li><a class="reference internal" href="#set-up-your-project">Set Up Your Project</a></li>
<li><a class="reference internal" href="#next-steps">Next Steps</a></li>
</ul>
</li>
</ul>
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<p>
Apache MXNet is an effort undergoing incubation at The Apache Software Foundation (ASF), <strong>sponsored by the <i>Apache Incubator</i></strong>. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.
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