Which of the following statements are incorrect regarding closures in Apple Swift?

1. In Apple Swift, a closure can capture all the references to variables from the surrounding context in which it is def‌ined, but cannot capture references to constants.

2. A nested function is a closure that has a name but it cannot capture any value from its enclosing function.

3. A global function is a closure that has a name and does not capture any value.

In Apple Swift, which of the following parameters can be used in a closure expression?

1. Constant parameters

2. Variable parameters

3. Inout parameters

4. Variadic parameters

5. Tuple parameters

In Apple Swift, which of the given statements is correct about initializers?

1. Failable and non-failable initializers can be def‌ined with the same name and parameter types

2. No value can be returned by initializers.

3. A failable initializer cannot delegate to a non-failable initializer.

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

let a;zUlnt8 = 0b11101111

let sz;lnt8 = 0b00110011

let c=a&b

print(c)

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

func abc(param1: String) -> lnt[

print(param1)

return param1.characters.count

}

func xyz(param1: String) [

abc(paramI)

}

xyz.("John Smith")

What will be the output of the following code?

func abc(p: Double...) -> Double {

var sm: Double = O

for number in p[

sm += number

I

return sm I Double{p.count)

I

print(abc(6, 7.25, 16.75))

How many times will the following Apple Swift code print the word "green"?

for p in 21...34[

if p%2==1[

var a = "red"

var b: String?

var c = b ?? a

print( c)

}

else if p%3==2{

let a = "green"

let e = "red"

var f = e ?? a

print(f)

}

else(

var g = "green"

var h: String?

var k = h ?? g

print(k)

}

}

Choose True or False.

In Apple Swift, structures are reference types, whereas classes are value types.

What will be the output of the following code?

class 81 (

func cn10

l

for var a = 9; a >= 1; --a[

for var b = 9; b >= 0; --b[

if b%2==a/2 [

print((b%4).terminator: "")

I

I

print("")

III

let s = a10

s.cn10

Which of the following statements are valid regarding an assignment operator in Apple Swift?

1. let b=10

2. let (a,b) = (2, 3)

3. if a = b { )

Analyze the Apple Swift code given in Image 1, and choose its correct output from Image

What will be the output of the last line of the given Apple Swift code?

let a=4

print(a&+0)

print(a&-O)

print(a&0)

print(a<<1)

print(a>>1)

print(a<<2)

Analyze the following Apple Swift code and select its correct output from the given options.

struct a1 [

var x = 0.0, y = 0.0

}

struct b1 {

var w = 0.0. h = 0.0

}

struct Rt{

var n1 = a1()

var 51 = b1()

var c1: a1 {

getl

let cX = n1.x + (sI.w / 2)

let CY = n1.y -|- (s1.h / 2)

return a1(x: cX. y: cY)

}

set(cc) [

n1.x = cc.x - (s1.w ‘36 4)+2.5

n1.y = my - (sl.h % 4)+2.5

I I I

var rr = Rt(n1: a1(x: 0.0, y: 0.0),

$1: b1(w: 10.0, h: 10.0))

let isc = rr.c1

rr.c1 = a1(x: 16.0, y: 16.0)

print("\(rr.n1.x), \(rr.n1.y)")

Based on your analysis of the following Apple Swift code, identify from the given options the code that will generate compilation error when executed.

func abc(inout a: T, inout _ b: T) {

let a1 = a

a = b

b = a1

print("\(a) \(b)")

}

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")

]

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)"

]

func kp0[

println("\(n m)")

1}

let s=abc()

println(s.kp0)

class sd1: abc[

var hB = false

func k1(){

let i = abc();

println("\(i.y)")

let be = sd1()

bc.hB = true

println("\(bc.y)")

println(i.kp())

]}

class Tn: abc[

var nm=15.0

override func kp0[

println(15.0)

]}

let tr = Tn0

tr.kp0

What will be the output of the following code?

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()

Based on your analysis of the above code. find out the output generated by the following lines.

let b1 = abc([9,-7,3,110,4,721)

print("number: \(b1.x), \(b1.y)")

What is the name of the Xcode generated header file used to import Swift classes into an Objective-C Class given a product module named Example?

What does a retainCount represent in ARC?

Which one of the below functions definitions is wrong considering Swift language?

Which of these is a valid syntax for iterating through the keys and values of a dictionary?
let dictionary = [keyOne : valueOne, keyTwo : valueTwo]

What is the name of the Swift language feature that Objective-C Blocks are translated into?

Which one creates a dictionary with a key type of Integer and value of String?

Which of these is an appropriate syntax for dispatching a heavy operation to a background thread?

What is the name of the deinitializer in a Class declaration?

Which of these is an appropriate syntax for declaring a function that takes an argument of a generic type?

Which of these is not a valid property declaration in Swift?