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scalaexceptionpattern-matchingtry-catch

Catching multiple exceptions at once in Scala

How to catch multiple exceptions at once in Scala? Is there a better way than in C#: Catch multiple exceptions at once?

Solution

  • You can bind the whole pattern to a variable like this:

    try {
   throw new java.io.IOException("no such file")
} catch {
   // prints out "java.io.IOException: no such file"
   case e @ (_ : RuntimeException | _ : java.io.IOException) => println(e)
}

    See the Scala Language Specification page 118 paragraph 8.1.11 called Pattern alternatives.

    Watch Pattern Matching Unleashed for a deeper dive into pattern matching in Scala.