Iterating over Java collections in Scala

As of Scala 2.8, all you have to do is to import the JavaConversions object, which already declares the appropriate conversions.

import scala.collection.JavaConversions._

This won't work in previous versions though.

Edit: Scala 2.13.0 deprecates scala.collection.JavaConverters, so since 2.13.0 you need to use scala.jdk.CollectionConverters.

Scala 2.12.0 deprecates scala.collection.JavaConversions, so since 2.12.0 one way of doing this would be something like:

import scala.collection.JavaConverters._

// ...

for(k <- javaCollection.asScala) {
    // ...
}

(notice the import, new is JavaConverters, deprecated is JavaConversions)

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