Is the use of exceptions a bad practice in scala?

Question

I\'ve seen many times pieces of scala code using Option (for simple values) or Either[List[Error], T] for handling errors.

this gives place to code like this

Answer 1

The answer varies between what is ideal and what is practical. Ideally, avoid using exceptions. Practically, you can't live without them.

Scala seems to favor one-liners and along those lines v2.10 has the new monad Try:

import scala.util.Try

def percentCompleted( total:Int, done:Int ): Int = Try (done * 100 / total) getOrElse 100

percentCompleted( 0, 10 )    // Catches divide-by-zero and returns 100% instead