Try and getOrElse scala
scala
Solution
I think you misunderstood Try. and .getOrElse
Definition of Try :
The Try type represents a computation that may either result in an exception, or return a successfully computed value. It's similar to, but semantically different from the scala.util.Either type.
scala> Try("here_a")
res1: scala.util.Try[String] = Success(here_a)
scala> Try("here_a").get
res2: String = here_a
scala> Try(throw new Exception("FAIL here_a")).getOrElse("here_b")
res3: String = here_b
scala>
It only fails if you throw Exception. null is still a value.
Problem
``` val label = Try("here_a").getOrElse("here_b") ``` In the case where `here_a` is not found, this is not falling back to `here_b`. Why is the `.getOrElse` not functioning? Thanks @jwvh. These values are sting files paths and thus the exception is the following `Exception in thread "main" java.io.FileNotFoundException:` As per Andrew James Ramirez's comment I tried this but issue persists. `Try(throw new Exception("FAIL here_a")).getOrElse("here_b")` I have also tried `Try(throw new Exception("FileNotFoundException here_a")).getOrElse("here_b")` Edit It seems I may have oversimplified this question for SO. Some more context. The string is actually a file path. Perhaps this is making a difference? Effectively, a `json` file may be found in one of two possible locations. I thus wish to try the first location and if a `java.io.FileNotFoundException` is returned, fall back on the second location. This is what I presently have: `val input_file = Try(throw new Exception("FAIL location_a/file_a.json")).getOrElse("location_b/file_a.json")` Edit V2 I am embarrassed to say that I found the simple error. I am running this scala code on `spark` and I forgot to repackage in between testing. `sbt package` was all that was required. :-/