Objective Questions in Swift2.2 @iPhone - Set A

Q.1: Which syntax is wrong in Swift2.2

A.  var str1

B.  var str2 : String

C.  var  str3 = “Hello “

D. var str4 : String  = “Hi….”

Q.2: What will be the output

var str = “Hello”

print(“Hello ”+str)

      A.         Error

      B.         Hello

      C.         Hello Hello

      D.        None of the above

Q.3: What will be the output

var int  = 9

int = int/2

     A.         4

     B.         Error 

     C.         3

     D.        4.5

Q.4: What will be the output

var  int : Int = 9

print(int)

     A.         Compile Time error

     B.         Run time error

     C.         9 

     D.        none of the above

Q.5: What will be the output

var int = 2

var num  : Double = 8.4

print(int * num)

      A.         Compile time error

      B.         Run time error

      C.         16.8

      D.        16

Q.6: What will be the output

var int = 2

print("The value is int ")

A. The value is 2

B. Compile time error

C. The value is int

D. None of the above

Q.7: What will be the output

var int = 2

print("The value is \(int) ")

A. The value is 2

B. Compile time error

C. The value is int

D. None of the above

Q.8 : var isFemale : Bool  = false  is a valid syntax or nor

A. Yes

B. No

C. May Be

D. None of the above

Q.9: What will be the output

var int = 2

var num  : Double = 8.4

print( num * Double (int))

      A.         Compile time error

      B.         Run time error

      C.         16.8

      D.        16

Q.10: Which is not a valid data type keyword in Swift2.2

A. Int

B. Bool

C. Char

D. Character

  A    C    A    C     A    C      A       A      C      C