Comment by _31

Past the syntax similarities, both of these languages are intended replacements for an 'old' language (Objective-C => Swift, Java => Kotlin) on a dominant mobile platform, with interoperability as a major selling point (requirement?). As a mobile dev (mainly iOS) this is awesome to see and although I love me some Objective-C, working with swift has been a pleasure. Now Java on the other hand... (shudders). With Google making Kotlin an official/first-class language and the syntax being so similar to swift I could see myself spending more time working with Android.