onlineTest.swift

print("Q:1:")

let val = 10.2
print("\(val) of type \(val.description)")


var numbers = [1,2,3]
numbers+=[4]
print(numbers)

print("7:")
let i = 3
switch i {
case 1:
   print("Number was 1")
case 2:
   print("Number was 2")
case 3:
   print("Number was 3")
}


print("8:")
let names = ["Shankar","Archana"]
for i in 0...names.length
{
   print("Hello \(names[i])!")
}

print("9:")
let num = 16.0
    print(" \(num) squared is  \(num * num), and its square root is \(sqrt(num)) !")


print("10:")
for name in names
{
   name = name.uppercased()
   print("Hello \(names)!")
}



print("12:")
let names12 = ["Shankar","Sulaco","Enterprise","Galactica"]
for name in names12 where name.hasPrefix("S") {
    print("Hello \(name)")
}


print("13:")
let names13 = ["Yugan","Archana"]
let names13Result = names12 + names13
print(names13Result)


print("14:")
func sayHello(to name:String)->String {
    return "Howdy! \(name)"
}
print("\(sayHello(to:"Shanky"))")


print("15:")
if let name = names12.last {
    print("\(name)")
}

print("16:")
let names16 = [String]()

names16.append("Source")
names16.append("C++")
names16.append("Objective-C")



print("17:")
var i = 2
// NOTE : do ... while does not exist, There is repeat .. while is there
repeat {
    print(i)
    i *= 2
}while(i < 128)


print("18:")
enum Weather {
   case cloudy
   case temprature
   case windy(speed:Int)
}

let today = Weather.windy(speed: 10)

switch today {
case .cloudy,.temprature :
   print("It is not windy")
case .windy(let wind) where wind >= 10 :
   print("This is windy high speed")
}

print("19:")

let myStr : String
myStr = "Hello"