Kotlin Programming Cookbook

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We can also use other methods like readLine() for this purpose. This code is an example of that:

import java.io.Fileimport java.io.InputStreamfun main(args: Array<String>) {    val listOfLines = mutableListOf<String>()    val reader = File("lorem.txt").bufferedReader()    while(true) {        var line = reader.readLine()        if(line == null) break        listOfLines.add("> "+line)    }    listOfLines.forEach{println(it)}}

The great thing about using the useLines() method is that it closes the stream post-execution. Also, the code in the preceding examples was a more idiomatic and clean way of doing the same thing.

Another method provided by Kotlin that returns a sequence of lines is lineSequence(), but it does not close the BufferedReader after execution, which ...