Functions and properties can be declared as private. These are only accessible
by other stuff inside of that class; they are inaccessible anything outside
of that class.
In this case, something() is private, so we cannot call it from main().
We can call something() from somethingElse(), as both of those are functions
on Foo. And, since somethingElse() is public (the default), we can call
somethingElse() from main() and therefore indirectly call something() from
main().
You can learn more about this in:
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class Foo {2
private fun something() {3
println("Hello, world!")4
}5
6
fun somethingElse() {7
something()8
}9
}10
11
fun main() {12
val foo = Foo()13
14
foo.somethingElse()15
}16