There can be multiple use cases. Couple are mentioned below. 1) If you are a Java programmer trying to learn Scala, then you can easily check how a piece of Ja

There can be multiple use cases. Couple are mentioned below. 1) If you are a Java programmer trying to learn Scala, then you can easily check how a piece of Java code will look in Scala. This can help in learning Scala. 2) In case you want to convert Java application to Scala application this might help.