Swift Tutorial - Tutorialspoint

init()

{

super.init(stm1: 93 , results: 89 )

}

}

let marksobtained = display()

marksobtained.print()

When we run the above program using playground, we get the following result:

Mark1:93, Mark2:89

Class 'StudDetails' is defined as super class where student marks are declared and the
subclass 'display' is used to inherit the marks from its super class. Sub class defines
students marks and calls the print() method to display the students mark.

Overriding

Accessing the super class instance, type methods, instance, type properties and subscripts
subclass provides the concept of overriding. 'override' keyword is used to override the
methods declared in the superclass.

Access to Super class Methods, Properties and Subscripts

'super' keyword is used as a prefix to access the methods, properties and subscripts
declared in the super class.

Overriding Access to methods,properties and subscripts

Methods super.somemethod()

Properties super.someProperty()

Subscripts super[someIndex]

Methods Overriding

Inherited instance and type methods can be overridden by the 'override' keyword to our
methods defined in our subclass. Here print() is overridden in subclass to access the type
property mentioned in the super class print(). Also new instance of cricket() super class is
created as 'cricinstance'.

class cricket {

func print() {

println("Welcome to Swift Super Class")