hitendradeveloper

import Foundation

//MARK:- InformationDisplayble Protocol
protocol InformationDisplayble {
    func displayInformation()
}

//MARK:- Employee Class
class Employee {
    var employeeID: String = "EMP007"

hitendradeveloper

import Foundation

//MARK:- Person
class Person {
    var firstName: String = "Hitendra"
    var lastName: String = "Solanki"
}//End: Person

//creating instances | objects as a person type
let person1: Person = Person()

hitendradeveloper

import UIKit

protocol HSCombineTableViewDatasourceDelegate : UITableViewDataSource, UITableViewDelegate { } //empty protocol

class ContactListViewController: UIViewController {
    //ContactListViewController implementation
}

extension ContactListViewController: HSCompositeTableViewDatasourceDelegate {
    //implementation of methods releated to UITableViewDataSource and UITableViewDelegate

hitendradeveloper

import UIKit

typealias HSCompositeTableViewDatasourceDelegate = (UITableViewDataSource & UITableViewDelegate)

class ContactListViewController: UIViewController {
    //ContactListViewController implementation
}

extension ContactListViewController: HSCompositeTableViewDatasourceDelegate {
    //implementation of methods releated to UITableViewDataSource and UITableViewDelegate

hitendradeveloper

class PlacesMapViewController: UIViewController {
    //PlacesMapViewController implementation
}

extension PlacesMapViewController: MKMapViewDelegate {
    //implementation of methods releated to mapView
}
extension PlacesMapViewController: UISearchBarDelegate {
    //implementation of methods releated to searchbar
}

hitendradeveloper

import Foundation

protocol Displayable {
    func displayName()
}

class Person {
    var name: String
    init(name: String) {
        self.name = name

hitendradeveloper

import Foundation

protocol Displayable { 
  //protocol requirements
}

class Person: Displayable {
  //class implementation
}

hitendradeveloper

import Foundation

//MARK:- Person, Super class
class Person {
  var firstName: String = "Hitendra"
  var lastName: String = "Solanki"
  
  var displayString: String {
    return "Name of person is \(firstName) \(lastName)."
  }

hitendradeveloper

import UIKit

class LoginViewController: UIViewController {
  //your class implementation
}

hitendradeveloper

var intValue: Int = 5
var doubleValue: Double = 7.0
var addition = Double(intValue) + doubleValue //addition will be implicitly considered of type Double by swift compiler