Just a few examples: 1. Someone still learning Scala syntax (and already knows Java) 2. Let's say you already have an existing Scala code base and you want to

Just a few examples: 1. Someone still learning Scala syntax (and already knows Java) 2. Let's say you already have an existing Scala code base and you want to try out some new Java library which has examples in Java but you want to use it in your Scala code.