Swift subclassing - how to override Init()

Question

I have the following class, with an init method:

class user {
  var name:String
  var address:String

  init(nm: String, ad: String) {
    name = nm
    address          


        

Answer 1

In swift 2.0 and Later it works like this (all cases)

init(newString:String) {
    super.init(string:newString)
    // Designed initialiser 
}
override init(someString: String) {
    super.init(mainString: someString)
    // Override initialiser when subclass some class 
}
required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
    // Some boilerplate code to handle error (needed when override)
}
convenience init(newString:String, withParameters:Dictionary) {
    self.init(someString:newString)
    //Convenience initialiser 
}