Scala学习总结_集合操作篇

发表于

scala version 2.11

java 集合和scala集合互转

  • java List && scala List

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    // java list to scala list
    val list: java.util.List[String] = Arrays.asList("1", "2")
    import scala.collection.JavaConverters
    val scalaList = JavaConverters.asScalaIteratorConverter(list.iterator()).asScala.toList
    println(scalaList.isInstanceOf[List[String]])
    scalaList.foreach(println)

    // scala list to java list
    val scalaList = List("1", "2", "3")
    import scala.collection.JavaConverters._
    val javaList = scalaList.asJava
    print(javaList.isInstanceOf[java.util.List[String]])

  • java Set && scala Set

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  • java map && scala map

集合遍历

集合互转

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