如何将Java Iterable转换为Scala Iterable? [英] How can I convert a Java Iterable to a Scala Iterable?

问题描述

是否有一种简单的方法来转换

Is there an easy way to convert a

java.lang.Iterable[_]

到

Scala.Iterable[_]

?

推荐答案

在Scala 2.8中，这变得容易得多，有两种方法可以实现.一种是显式的(尽管它使用 隐式):

In Scala 2.8 this became much much easier, and there are two ways to achieve it. One that's sort of explicit (although it uses implicits):

import scala.collection.JavaConverters._

val myJavaIterable = someExpr()

val myScalaIterable = myJavaIterable.asScala

自从我写这篇文章以来，Scala社区已经达成了广泛共识，即JavaConverters是好事，而JavaConversions是坏事，因为它可能会引起诡异的动作. -一个距离.所以根本不要使用JavaConversions！

Since I wrote this, the Scala community has arrived at a broad consensus that JavaConverters is good, and JavaConversions is bad, because of the potential for spooky-action-at-a-distance. So don't use JavaConversions at all!

一个更像是一个隐式隐式::)

And one that's more like an implicit implicit: :)

import scala.collection.JavaConversions._

val myJavaIterable = someExpr()

for (magicValue <- myJavaIterable) yield doStuffWith(magicValue)

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