title: How to make a jar file from scala
body: <p>I have read online that it is possible to create a jar file from scala code that could be run from the cli. All have written is the following code. How do I make a jar file from it? I am using sbt 0.13.7.</p>
  
  <pre><code>object Main extends App {
      println("Hello World from Scala!")
  }
  </code></pre>