Swift · question
Q.07 of 51
What is inheritance in Swift?
← All Swift questions
Re-explain
Inheritance allows classes to inherit properties and methods from another class.
// Base class
class Vehicle {
var wheels: Int
init(wheels: Int) {
self.wheels = wheels
}
func start() {
print("Vehicle starting")
}
}
// Derived class
class Car: Vehicle {
var doors: Int
init(doors: Int) {
self.doors = doors
super.init(wheels: 4) // Call parent initializer
}
override func start() {
super.start() // Call parent method
print("Car engine starting")
}
}
Rewriting in plainer words…
This answer doesn't lend itself to a diagram - it reads best . No credits were charged.
The model's verdict: “”
This answer is explained by a shared concept diagram -
open →
Point the redraw:
How well did you know this?
AI:
Saved in this browser - sign in to keep your review list.
How should your speech become text?
Listening… your words appear above as you speak - tap Stop when you're done.
Recording · cr - tap Stop & transcribe when you're done.
Transcribing with AI…
Voice:
Keep going - a few more words and AI can grade it.
Interview lens
Likely follow-ups, what you can say, and the weak answers to avoid.
Pro · $10/mo
44 of 51 Swift answers are gated.
Full answers, code samples, AI explanations - simpler, deeper, or as an interactive diagram. Cancel anytime.
-
Full answers + code
-
AI explain - simpler, deeper, or visualized
-
1,000 AI credits / month
-
Cancel anytime
