Enumeration

enum SiliconValley {
case Google
case Apple
case Microsoft
}

enum SiliconValley1 { case Apple, Google, Amazon, Microsoft} 

var companyName = SiliconValley1.Apple 
companyName = SiliconValley1 . Google 
companyName = .Amazon 

/*
After the first definition, he realized that the 
variable companyName type is the SiliconValley1 enum.
As in the .Amazon definition in the last line, 
there is no need to pass the name of the enum as an extra.
companyName is automatically inferred.
*/

enum Direction1: String { 
case North, South, East, West
 }


//Default value of North = “North” 
//Default value of South = “South” 
//Default value of East = “East”
//Default value of West = “West”

enum SiliconValley2: Int {
 case Apple, Google, Amazon, Microsoft
}
 //Default value of Apple = 0, Google =1, Amazon =2 , Microsoft =3

enum Direction2: Character
 { 
case North = "n" 
case South = "s" 
case East = "e" 
case West = "w"
}

enum SiliconValley3: Int { 
case Apple = 1 , Google, Amazon, Microsoft 
}
 // value of Google = 2, Amazon = 3, Microsoft = 4



// Defined Enum Raw Value can be accessed as follows.
enum SiliconValley4: Int { case Apple = 1 , Google, Microsoft, Amazon }
let companyRank = SiliconValley4.Amazon.rawValue 

print ( "Raw value of Amazon is \(companyRank)" ) 
//Prints Raw value of Amazon is 4”