Declare a new class with its own functions/methods, create a new instance and call its methods from the outside.
// Declare our new class
class mathClass {
func add(a:Int, with:Int)->Int {
return a+with;
}
func multiply(a:Int, with:Int)->Int {
return a*with;
}
}
// Create a new instance of the mathClass
let math = mathClass();
print(math.add(1, with:1));
print(math.multiply(2, with:5));