Question

I have a string that looks like this

svchost.exe                   4464 Services                   0        47.656 K

note that there are many spaces and the amount of spaces are different in each case

I want to extract the name svchost.exe and the pid 4464. I would be able to do this, but only with the imperative way. Its hard for me to think in a functional way to solve this problem.

It is possible to solve this with regex but I want to see how you do something like this with functional programming.

Answer 1

Easy peasy:

val s = "svchost.exe                   4464 Services                   0        47.656 K"
s.split(" ").filterNot(str => str == "")
// Array[java.lang.String] = Array(svchost.exe, 4464, Services, 0, 47.656, K)

UPDATE

or use s.split(" +") which relies on regexp beauty