scala|scala 定长数组 scala定长数组

数组的定义

scala> val arr = Array(1,2,3) arr: Array[Int] = Array(1, 2, 3) //自动推断初始化类型 //也可以指定类型 scala> val arr = Array[Int](1,2,3) arr: Array[Int] = Array(1, 2, 3) val arr2 = new Array[Int](10)//10代表数组长度，没办法初始化 arr2: Array[Int] = Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)

【scala|scala 定长数组】数组的访问
数组的常用方法

scala> arr2.sum res85: Int = 2scala> arr2.max res86: Int = 2scala> arr2.min res87: Int = 0scala> arr2.sorted res88: Array[Int] = Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 2)scala> arr2.sorted.reverse res89: Array[Int] = Array(2, 0, 0, 0, 0, 0, 0, 0, 0, 0)