Scala与Java的交互

1、list类型和buffer的自动转换

import scala.collection.mutable.ArrayBuffer
    import scala.collection.JavaConverters.asScalaBuffer
    import java.util.List

    object helloworld {
      def main(args: Array[String]) {

        val buffer = ArrayBuffer(1,3,4);
        val list:java.util.List[Int] = buffer;
        println(list);


  }
}