scala> import scala.util.control.Exception.allCatch
import scala.util.control.Exception.allCatch

scala> val x: Option[Int] = allCatch.opt { "123".toInt }
x: Option[Int] = Some(123)

scala> x
res0: Option[Int] = Some(123)

scala> :type x
Option[Int]

scala> Console println x
Some(123)

scala> x
res2: Option[Int] = Some(123)

scala> val a: Int = x
<console>:9: error: type mismatch;
 found   : Option[Int]
 required: Int
       val a: Int = x
                    ^

scala>