What will be the output of the following Apple Swift code?

enum Abc [

case Mark

case John

case Andrew

case Lucy

case June

case Kate

]

enum Class [

case First. Second. Third. Fourth. Fifth. Sixth. Seventh

1

var n1 = Abc.Lucy

n1 = .John

print(n1)

let sp = Class.Sixth

sp = .Third

switch sp {

case .Third:

print("Perrnitted to the cricket ground")

default:

print("Not Permitted to the cricket ground")

]

ln Apple Swift, which of the following references should be used when it is known that the reference will never be nil during its lifetime?

In Apple Swift, which of the following symbols is used to write an implicitly unwrapped optional?

In Apple Swift, a class:

What will be the output of the given Apple Swift code? var nm = 5.0 class abc[ var x = 0.0 var y: String [ return '\(nm)' ]

Output? class a1 { func cn10 { for var a = 9; a >=1; --a { for var b = 9; b >= 0; --b{ if b%2==a/2 [ print((b%4),terminator: "“) } } print("") }}} lets = a1() s.cn1()

In the function below, what are this and toThat examples of? func add(this x: Int, toThat y: Int)->{}

How do you designated a failable initializer?

How would you call a function that throws errors and also returns a value?

What is the inferred type of x? let x = ["a", "b", "c"]

Which object allows you access to specify that a block of code runs in a background thread?