Argument passed to call that takes no arguments getting in Swift 4

Question

I am doing some learning things in swift. And I am using version Swift 4.

I am trying to do some method overriding thing.

class cricket {
    func print() {
        print("Super class called")
    }
}

class tennis : cricket {
    override func print() {
        print("Sub class called")

    }
}

let circInstance = cricket()
circInstance.print()

let tennisInstance = tennis()
tennisInstance.print()

But, If I would run above program in my playground of Xcode, Getting following error at print statements.

error: MyPlayground.playground:508:15: error: argument passed to call that takes no arguments
        print("Super class called")
             ~^~~~~~~~~~~~~~~~~~~~~

error: MyPlayground.playground:514:15: error: argument passed to call that takes no arguments
        print("Sub class called")
             ~^~~~~~~~~~~~~~~~~~~

Any suggestions?

Answer 1

You have a name conflict with the local method. You have to use the qualified name:

Swift.print("Super class called")

Otherwise you are trying to call self.print() which takes no arguments.

Swift. here is the name of the Swift Standard Library module that contains the print function.