How to deal with decimal number in scala -


i have file this:

1    4.146846 2    3.201141 3    3.016736 4    2.729412

i want use todouble but, it's not working expected :

val rows = textfile.map { line =>        val fields = line.split("[^\\d]+")       ((fields(0),fields(1).todouble))      }  val num = rows.sortby(- _._2).map{case (user , num) => num}.collect.mkstring("::")  println(num)

the result print out 4.0::3.0::3.0::2.0.
expect 4.146846::3.201141::3.016736::2.729412

how do this?

your regular expression stopping @ decimal point in 4.146846.

try line.split("[^\\d.]+")


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