In my last article, I talked about converting Java codebases to Kotlin, and about some of the libraries I like. Here, I’m going to talk about my thoughts on the Kotlin language itself and the way it interacts with Java. The GoodThere’s a lot to like about Kotlin. Some of the obvious features like null safety, property access, and unchecked exceptions are covered at length in other publications, so

Kotlin Advent Calendar 2013 22日目のエントリです。 Javaのライブラリ使いたい Kotlin使ってて普通にサードパーティ製のライブラリ使いますよね。例えばJoda-Time使ってこんな感じで。 fun main(args: Array<String>) { val today = LocalDate.now() val first = today!!.dayOfMonth()!!.withMinimumValue() println(first!!.toString("mm/dd")) } すごい勢いある感！！ fun main(args: Array<String>) { val today = LocalDate.now() val first = today?.dayOfMonth()?.withMinimumValue() println(first