Java is not a good example of a statically typed language. Null pointer exceptions just don't happen in idiomatic Scala. For example, let's say I have 3 functions a,b and c, each with signature Int => Option[Int]. Any one of these can return Some[Int] or None.
Options, like all collections, can be chained together as such:
for {
x <- a(1)
y <- b(x)
z <- c(y)
} yield z
this expression is of type Option[Int], and will never throw a null pointer exception. (Futures can be chained together with identical syntax)
Options, like all collections, can be chained together as such:
this expression is of type Option[Int], and will never throw a null pointer exception. (Futures can be chained together with identical syntax)