CanIReadOpenDeletedFiles.scala

CanIReadOpenDeletedFiles.scala

import java.io._

object CanIReadOpenDeletedFile {
  def main(args: Array[String]): Unit = {
    try {
      val f = new File("deleteme")
      val out = new FileOutputStream(f)
      out.write(1)
      out.close()

      val in = new FileInputStream(f)
      f.delete()
      val out2 = new FileOutputStream(f)
      out2.write(2)
      out2.close()
      assert(f.exists())
      val in2 = new FileInputStream(f)
      assert(in.read() == 1)
      assert(in.read() == -1)
      assert(in2.read() == 2)
      assert(in2.read() == -1)
      in.close()
      in2.close()
      println("Yes!  You can read files that were deleted after they were opened!")
    } catch {
      case ex: Exception =>
        println("No, you cannot read files that were deleted after they were opened")
        throw ex
    }
  }
}