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subclass    
n. 亚纲,子集

亚纲,子集

subclass
子类

subclass
子类

subclass
n 1: (biology) a taxonomic category below a class and above an
order

Subclass \Sub"class`\, n.
One of the natural groups, more important than an order, into
which some classes are divided; as, the angiospermous
subclass of exogens.
[1913 Webster]

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  • java - What is a Subclass - Stack Overflow
    A subclass is a class that describes the members of a particular subset of the original set They share many of characteristics of the main class, but may have properties or methods that are unique to members of the subclass You declare that one class is subclass of another via the "extends" keyword in Java public class B extends A {
  • Inner Classes vs. Subclasses in Java - Stack Overflow
    A subclass essentially shares an "is-a" relationship with its parent, whereas an Inner class shares a "has-a" relationship For example, we have class yolk which is an inner class of Egg class, then we say Egg class "has a" yolk class The object of yolk class may be as a member of Egg class, but there is no link of their feature
  • oop - How to create a subclass in C#? - Stack Overflow
    "Subclass" or "Subclassing" is a term used by Vb6 programmer (NOT Net) if you're looking for the answer, in C#, you need to search for protected override void WndProc I hope that help all my fellow Vb6 programmer ;)
  • python - Subclass in type hinting - Stack Overflow
    When you specify cls: A, you're saying that cls expects an instance of type A For python 3 5 2 through 3 8, the type hint to specify cls as a class object for the type A (or its subtypes) uses typing Type
  • Whats the difference between a subclass and a subtype?
    Therefore while the subclass can pass anytime you need a type of the parent class, the type of the parent class should be rejected if you need the type of the subclass If you combine this with the stipulation that all user defined values must be instances of a class, then you can have is subclass of pull double duty and get rid of is subtype of
  • How to properly subclass a subclass in JavaScript?
    I thought I had a good understanding on how to properly extend classes in JavaScript, but when extending a subclass I run into an endless loop when I override a method, and the call the parent method from the child class I'm either doing it wrong, or you just shouldn't subclass this way in JavaScript Can anybody help educate me please?
  • python - Understanding __init_subclass__ - Stack Overflow
    A full custom metaclass doesn't provide any indication of the scope of impact, while __init_subclass__ more clearly indicates that there's no persistent effects on behaviour post-subclass creation Metaclasses are considered magic for a reason, you don't know what their effects will be after the class will be created
  • Explicit casting from super-class to sub-class - Stack Overflow
    As it was said before, you can't cast from superclass to subclass unless your object was instantiated from the subclass in the first place However, there are workarounds All you need is a set of constructors and a convenience method that will either cast your object to Dog, or return a new Dog object with the same Animal properties
  • How to find out the subclass from the base class instance?
    Is there a way to find out the name of derived class from a base class instance? e g : class A{ } class B extends A{ } class c extends A{ } now if a method returns an obj
  • initialization - python sub class initialiser - Stack Overflow
    Of course, Student can have its own initialiser However, a class can only have one initialiser in Python, because that is a special method called within the constructor (the class __new__ method)





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