文章浏览阅读1.2k次。内部类的作用域:外部类对象import scala.collection.mutable.ArrayBufferclass Class { class Student(val name: String) val students = new ArrayBuffer[Student] def register(name: String) = { new Studen..._scala 扩大变量的作用域...
嵌套类Scala嵌套类的使用1(代码实例):object TestInnerClass { def main(args: Array[String]): Unit = { val obj1 = new OuterClass val obj2 = new OuterClass val inner1 = new obj1.InnerClass val in..._scala 嵌套vec的size...
快学scala是一本很好的入门书籍,但是感觉里面有些错误,比如在嵌套类那一节,用代码验证结果和说明不一致class NetWork { class Member(val name:String){ val contacts = new ArrayBuffer[Member]() } private val members = new Array......
文章浏览阅读290次。scala类库文档Scala中,最顶端的两个trait是Nothing和Null:Nothing:abstract final class Nothing extends AnyNothing是其它任何类型的子类型(包括scala.Null)。Nothing类型没有实例。尽管Nothing类型没有实例,然而它在一些方面......