In this post, we will see how to manage Class in swift.
CLASS DEFINITION
import UIKit
// [Class definition]
class User{
// property
var Name:String
var YearBirth:Int
// Constructor
init(inputName:String, inputYearBirth: Int) {
Name = inputName
YearBirth = inputYearBirth
}
// Function used to calcolate the Age
func CalculateAge() -> Int {
let date = Date()
let calendar = Calendar.current
let components = calendar.dateComponents([.year], from: date)
return (components.year! - YearBirth)
}
}
CREATION AN INSTANCE OF USER CLASS:
let objUser = User(inputName: "Damiano", inputYearBirth: 1974)
print("Class User")
print("Function used: CalculateAge")
// Call the function to calcolate the Age
print("My age is: \(objUser.CalculateAge())")
print("")
DEFINITION OF OPERATOR CLASS THAT INHERITS FROM USER:
class Operator:User
{
var Office:String
// Constructor
init(Name:String, YearBirth: Int, InputOffice: String) {
Office = InputOffice
// User's Constructor
super.init(inputName: Name, inputYearBirth: YearBirth)
}
func PrintInfo() {
print("My Name is \(Name), age \(CalculateAge()) and I work in \(Office)")
}
}
// Create an instance of Operator class
let objOperator = Operator(Name: "Damiano", YearBirth: 1974, InputOffice: "London")
print("Class Operator")
print("Function used: PrintInfo")
// Call the function PrintInfo
objOperator.PrintInfo()
// Call the function CalculateAge
print("Function used: CalculateAge")
print("My age is: \(objOperator.CalculateAge())")
If we run this code in Playground, this will be the result:
