Java Optional Objects - DZone

In this post I present several examples of the new Optional objects in Java 8 and I make comparisons with similar approaches in other programming languages, particularly the functional programming language SML and the JVM-based programming language Ceylon, this latter currently under development by Red Hat. I think it is important to highlight that the introduction of optional objects has been a

[hoisjp]

ちょい昔の記事。Java 8

[eller]

今更感

[buzztaiki]

guavaのOptionalのasSet相当はない？

[NetPenguin]

javaにもMaybeモナドが…ネーミングはScalaのOptionに近いかな。

[ruicc]

いいね。nullを排除するためには代替機能を入れるか代替が作れる必要があるからね。

[YuichiTanaka]

java8でOptionalが追加されるとのこと。

[coppieee]

Java 8でいろいろ始まりすぎ。

[igaiga07]

お、Java8でOptionくるんだ

[digo]

なんか今更感が否めない＞Java8でOptional追加