Scala read file and split and modify each line

functional-programming, java, scala

Solution

One traversal and no additional memory

 Source
  .fromFile("files/ChargeNames")
  .getLines
  .map { line =>
    //do stuff with line like
    line.replace('a', 'b')
  }
  .foreach(println)

Or code which is a little bit faster, according to @ziggystar

Source
  .fromFile("files/ChargeNames")
  .getLines
  .foreach { line =>
    //do stuff with line like
    println(line.replace('a', 'b'))
  }

Problem

I'm new to Scala. I want to read lines from a text file and split and make changes to each lines and output them. Here is what I got: ``` val pre:String = " <value enum=\"" val mid:String = "\" description=\"" val sur:String = "\"/>" for(line<-Source.fromFile("files/ChargeNames").getLines){ var array = line.split("\"") println(pre+array(1)+mid+array(3)+sur); } ``` It works but in a Object-Oriented programming way rather than a Functional programming way. I want to get familiar with Scala so anyone who could change my codes in Functional programming way? Thx.

Original source