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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enums and Objects

Posted by Rob Fleming
Rob Fleming
6,634 Points

all i get is an error i dont know how to fix this swift_lint.swift:43:1: error: expected declaration

swift_lint.swift:43:1: error: expected declaration

^

the error

classes.swift 
class Point {
    var x: Int
    var y: Int

    init(x: Int, y: Int){
        self.x = x
        self.y = y
    }
}

enum Direction {
    case Left 
    case Right
    case Up
    case Down
}


class Robot {
    var location: Point

    init() {
        self.location = Point(x: 0, y: 0)
    }

    func move(direction: Direction) {
        // Enter your code below
        // We need to switch on the parameter we pass in.
        switch direction {  // The code block contains all the cases inside the braces.
            case .Up:  // Each case separates what it is from what it does with a :
                self.location.y += 1  // We reference the location object property for y like this.
            case .Down:  // We can leave out the Direction and start with . for the known type.
                self.location.y -= 1
            case .Left:
                self.location.x -= 1
            case .Right:
                self.location.x += 1
        }
    }

2 Answers

Joe Beltramo
Joe Beltramo
Courses Plus Student 22,191 Points

You are missing a closing bracket at the end of your file.

Rob Fleming
Rob Fleming
6,634 Points

Thank you

Mackenzy Douyon
seal-mask
.a{fill-rule:evenodd;}techdegree
Mackenzy Douyon
iOS Development Techdegree Student 2,913 Points
Mackenzy Douyon
.a{fill-rule:evenodd;}techdegree
Mackenzy Douyon
iOS Development Techdegree Student 2,913 Points

//HELP! none of those solutions works for me

class Point { var x: Int var y: Int

init(x: Int, y: Int) {
    self.x = x
    self.y = y
}

}

enum Direction { case left case right case up case down }

class Robot { var location: Point

init() {
    self.location = Point(x: 0, y: 0)
}

func move(_ direction: Direction) {
    // Enter your code below
  switch direction {
    case .Up:
        return location.y += 1
    case .Down:
        return location.y -= 1
    case .Right:
        return location.x += 1
               //case .Left:
    default:
        return location.x -= 1
    }

}

}

// posible solution #2 /* switch direction { case .Up: location.y++ case .Down: location.y-- case .Right: location.x++ case .Left: location.x-- } */

// posible solution #3

/* switch direction { case .Up: self.location.y += 1 case .Down: self.location.y -= 1 case .Left: self.location.x -= 1 case .Right: self.location.x += 1 } */

/* switch direction { case .Up: return location.y += 1 case .Down: return location.y -= 1 case .Right: return location.x += 1 default: return location.x -= 1 } */