Top "Superclass" questions

A superclass is a parent or base class that is derived or inherited from by a child class (or subclass).

implicit super constructor Person() is undefined. Must explicitly invoke another constructor?

I am working on a project and i am getting the error "implicit super constructor Person() is undefined. Must explicitly …

java class constructor superclass
Getting the name of a sub-class from within a super-class

Let's say I have a base class named Entity. In that class, I have a static method to retrieve the …

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Why aren't superclass __init__ methods automatically invoked?

Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as …

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Swift subclassing - how to override Init()

I have the following class, with an init method: class user { var name:String var address:String init(nm: String, …

initialization swift subclass superclass
When do you need to explicitly call a superclass constructor?

So say I have a subclass that extends a superclass. In what scenarios do I need to explicitly type super() …

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Why is constructor of super class invoked when we declare the object of sub class? (Java)

Consider this code: class Test { Test() { System.out.println("In constructor of Superclass"); } int adds(int n1, int n2) { return(…

java object constructor superclass
Is it possible to call subclasses' methods on a superclass object?

Animal is a superclass of Dog and Dog has a method called bark public void bark() { System.out.println("woof"); } …

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How do I call a super constructor in Dart?

How do I call a super constructor in Dart? Is it possible to call named super constructors?

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Java extends example

i have a java beginner question: Parent.print() prints "hallo" in the console, but also Child.print() prints "hallo". I …

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How to call a superclass method using Java reflection

I have two classes: public class A { public Object method() {...} } public class B extends A { @Override public Object method() {...} } I …

java reflection overriding superclass