Objective Questions in Swift2.2 @iPhone - Set D

Q.31: What will be the output of

               let a = 10

               var b = 5

               b = a

               print(b)

A.         10

B.         5

C.         Error

D.         None

Q.32: What will be the output

         var  x  = -9 % -4

        print(x)

A.         -1

B.         1

C.         0

D.        Error

Q.33: What will be the output

           let  x = -9

           let y =-x

           print(y)

A.         -9

B.         9

C.         0

D.        Error

Q.34:  What will be the output

   for index in 1…4

  {   

  print(index*5)

 }

A.         5,10,15,20

B.         5

C.         20

D.        None

Q.35: What will be the output

                      let allow = true

                      if !allow

                      {

                      print("Allowed")

                      }

                      else

                      {

                      print("Not Allowed")

              }

A. Allowed

B. Not Allowed

C. Error

D. None

Q.36: What will be the output

                      let yes = true

                      let no = false

                      if yes && no

                      {

                       print("Allowed")

                      }

                      else

                      {

                     print("Not Allowed")

             }

A. Allowed

B. Not Allowed

C. Error

D. None

Q.37: What will be the output

                      let yes = true

                      let no = false

                      if yes || no

                      {

                      print("Allowed")

                      }

                      else

                      {

                     print("Not Allowed")

              }

A. Allowed

B. Not Allowed

C. Error

D. None

Q.38: What will be the output

                   var str  = String()

                   if str.isEmpty

                      {

                      print("Nothing")

                      }

                      else

                      {

                      print("Something")

              }

A. Nothing

B. Something

C. Error

D. None

Q.39: What will be the output

                      for char in "Godara".characters

                      {

                       print(char)

              }

A. Run 5 Times

B. Run 4 Times

C. Run 6 Times

D. Compile Time Error

Q.40: What will be the output

                      let name = "Ravi Godara"

                      print(name[name.startIndex])

A. Compile Time Error

B. a

C. R

D. G

Answers  A   A   B    A   B    B   A    A     C    C 

Objective Questions in Swift2.2 @iPhone - Set C

     

Q.21 : var arr = [4,5,6,7,”Ravi"]  

           Is a

A.         Valid Declaration and Initialization of an Array

B.         Compile Time Error

C.         Run Time Error

D.        None of the Above

Q.22 : What will be the output

          var array  = [11,22,33,44,55]

          print(array.length)          

A.         Compile Time Error

B.         Run Time Error

C.         5

D.        None of the above

Q.23 : What will be the output

           var array  = [11,22,33,44,55]

           print(array.count)

    A.         Compile Time Error

B.       Run Time Error

C.         5

D.       None of the above

Q.24 Which syntax is valid for array declaration

A.        var arr : Array

B.        var arr : NSArray

C.        Both

D.        None

Q.25: What will be the output

          var array  = [11,22,33,44,55]

         print(array[3])

          

A.         Compile Time Error

B.         33

C.         44

D.        22

Q.26:  What will happen

          var array  = [11,22,33,44,55]

          array.append(1)

          print(array)

          

A.         Compile Time Error

B.         [11,22,33,44,55,1]

C.         [11,22,33,44,1]

D.        [1]

Q.27: What will be the output

          var array  = [11,22,33,44,55]

          array.removeAtIndex[2]

          print(array)

          

A.         Compile Time Error

B.         [11,22,33,55]

C.         [11,22,44,55]

D.        [11,22,33,44]

Q.28: What will be the output

          var array  = [111,22,33,404,-55]

          array.sort()

          print(array)

          

A.         Compile Time Error

B.         [22,33,111,404,-55]

C.         [-55,22,33,111,404]

D.        [111,22,33,404,-55]

Q.29: Which syntax is valid for Dictionary

     

      A.  var dictionary : NSDictionary

      B. var dictionary : Dictionary

      C. Both

      D. None

Q.30 What will be the output

        var dictionary = [“Android” : “Mobile OS”, ”Chess” :       

                                      ”Game”, ”Ravi” : “Trainer”]

       print(dictionary[“Ravi”])

A.         Mobile OS

B.         Game

C.         Trainer

D.        Compile Time Error

Answers   A     A    C     B     C     B    C    C    A    C