Question

I’ve recently wanted to give Scala a try and I started by reading book ‘Programming Scala’ by O’Reilly. I’ve tried example from this page:
http://programming-scala.labs.oreilly.com/ch01.html#ATasteOfConcurrency
and I get different results each time I run the shapes-actor-script – sometimes only first line of output is produced, sometimes the whole output, sometimes no output at all. I am using scala 2.7.7.

Answer 1

See Can Actors in Scala fail to process messages? (example in O'Reilly's Programming Scala)