Shulou(Shulou.com)06/02 Report--

This article mainly introduces "Scala traversing foreach process". In daily operation, I believe many people have doubts about Scala traversing foreach process. Xiaobian consulted various materials and sorted out simple and easy operation methods. I hope to help you answer the doubts of "Scala traversing foreach process"! Next, please follow the small series to learn together!

##traverse foreach

list traversal

var l = List(1,2,3,4,5)l.foreach(i=>println(i))

map traversal

var m = Map("tony" -> 80, "bob" -> 90) m.foreach(kv => println(kv._ 1, kv._ 2))

##Map

val l = List("hive","hadoop","spark") val books= l.map(s=>s.toUpperCase) for(x s.toList) for(x

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.