It seems to me some of the features you have requsted are part of Kotlin (which I am learning at the moment). So, e.g. concerning your property request, see: kotlinlang.org/docs/reference/prop...
Have you heard of it? Kotlin is fully compatible with Java, btw.
Of course, it's almost impossible today to be a Java developer and not having heard about Kotlin. I'm sure that most features in the article appear in several languages - I just listed them for the languages where I saw them for the first time. I never actually tried Kotlin so far, maybe I'll get the chance one day.
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It seems to me some of the features you have requsted are part of Kotlin (which I am learning at the moment). So, e.g. concerning your property request, see:
kotlinlang.org/docs/reference/prop...
Have you heard of it? Kotlin is fully compatible with Java, btw.
Of course, it's almost impossible today to be a Java developer and not having heard about Kotlin. I'm sure that most features in the article appear in several languages - I just listed them for the languages where I saw them for the first time. I never actually tried Kotlin so far, maybe I'll get the chance one day.