Count the number of words in all Word documents in a directory.

Main.scala

import java.io.{File, FileInputStream, FilenameFilter}

import org.apache.poi.xwpf.extractor.XWPFWordExtractor
import org.apache.poi.xwpf.usermodel.XWPFDocument

object Main {
  def main (args: Array[String]) {
    println(getCountFromFolder("E:\\SchoolWork\\Running Start"))
  }

  def getCountFromFolder(folderName: String): Int = {
    new File(folderName).listFiles(new FilenameFilter {
      override def accept(dir: File, name: String): Boolean = name.endsWith(".docx")
    }).foldLeft(0)((acc, file) => acc + getCountFromFile(file))
  }

  def getCountFromFile(file: File): Int = {
    new XWPFWordExtractor(new XWPFDocument(new FileInputStream(file.getAbsolutePath)))
      .getText.split("\\W+").length
  }
}