object FileMatcher {

  private def fileHere = (new File(".\\file").listFiles())

  def fileEnding(query : String)  = {

    for(file <- fileHere if file.getName.endsWith(query))

      yield file

  }

  def fileMathching(query: String, matcher:(String, String) => Boolean) = {

    for(file <- fileHere if matcher(file.getName, query))

      yield file

  }

  def fileEnding2(query : String) = fileMathching(query, _.endsWith(_))

  def fileContains(query : String) = fileMathching(query, _.contains(_))

  def main(args: Array[String]): Unit = {

    fileEnding2(".scala").foreach { println }

  }

}