Scala provides some of its own libraries for IO, but we can also make use of the Java library. The example of reading a file uses Scala's IO package, but the file writing example uses the Java IO package.
Reading a File
import scala.io.Source
object ReadLineFile {
def main(args: Array[String]) {
// Loop through each line in the file
for (line <- Source.fromFile("test.txt").getLines()) {
// Do something with line
println(line)
}
}
}Writing a File
import java.io._
object WriteFile {
def main(args: Array[String]) {
val writer = new PrintWriter(new File("output.txt"))
writer.write("Hello, world!")
writer.close()
}
}