lhohan

If you really want to do it yourself instead of using a library like commons-io, you can do the following in version 2.8. Create a helper method "use". It will give you a form of automatic resource management.

def use[T <: { def close(): Unit }](closable: T)(block: T => Unit) {
  try {
    block(closable)
  }
  finally {
    closable.close()
  }
}

lhohan

Java 7 is now out and you have another option: java.nio.file.Files.copy. The probably easiest solution (And with Scalas superior import even easier). Provided that from and to are strings as in your question:

import java.nio.file.StandardCopyOption.REPLACE_EXISTING
import java.nio.file.Files.copy
import java.nio.file.Paths.get

implicit def toPath (filename: String) = get(filename)

copy (from, to, REPLACE_EXISTING)