HashSet是一个密封的类。它扩展了AbstractSet和不可变的Set特性。它使用哈希码存储元素。
它既不保持插入顺序也不对元素进行排序。
Scala HashSet示例
在以下示例中, 我们创建了一个HashSet来存储元素。在这里, foreach用于迭代元素。
import scala.collection.immutable.HashSet
object MainObject{
def main(args:Array[String]){
var hashset = HashSet(4, 2, 8, 0, 6, 3, 45)
hashset.foreach((element:Int) => println(element+" "))
}
}
输出
0
6
2
45
3
8
4
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