What types can define subscripts in Swift?

What class in Swift or iOS provides access to fonts?

Are the following lines of code syntactically correct?

What happens if a programmer uses a class-only protocol in Swift with a structure?

What will be the output of the following lines of code ? 

class Test {

var x: Int = 0

func printSomething() {

x+=1

}

}

var test = Test()

test.printSomething()

print(test.x)

When a class implements a protocol in Swift, what does it need to do with respect to the protocol's functions?

What will be the output of the following code?

var namesOfIntegers = [Int: String]()

namesOfIntegers = [16:"Sixteen",15:"Fifteen",14:"Fourteen"]

namesOfIntegers = [:]

print(namesOfIntegers)

What will happen when we run the following lines of code?

struct Test {

var x: Int = 0

mutating func mutatingFunction() {

self = Test(x: 20)

}

}

var test = Test(x: 10)

test.mutatingFunction()

print(test.x)

Is the following syntax for an enumeration, correct ?

enum CompassPoint {

case north

case south

case east

case west

}

What will be the output of the following code?

struct Test {

var newVar: Int = 0 {

willSet {

print("Value of newVar will be set to \(newValue)")

}

}

}

var test = Test(newVar: 20)