Recent questions tagged OOP

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oop - Magic __get getter for static properties in PHP

public static function __get($value) does not work, and even if it did, it so happens that I already need the ... question, so, it is possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Diamond inheritance (C++)

I know that having diamond inheritance is considered bad practice. However, I have 2 cases in which I feel that ... the same method. Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Advantage of Local Classes Java

What is the advantage of local classes in Java or in any other language that makes use of this feature? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Why are constructors not inherited in java?

I am a beginner in java programming language, recently I have studied that constructors can not be inherited in java, ... read this link of C++ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - When should I use stdClass and when should I use an array in php oo code?

In the middle of a period of big refactorings at work, I wish to introduce stdClass ***** as a way to ... for each process on the long run. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - When to use interfaces or abstract classes? When to use both?

While certain guidelines state that you should use an interface when you want to define a contract for a class where ... as .NET and Java). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - In Javascript, what does this underscore mean?

var Gallery = Backbone.Controller.extend({ _index: null, _photos: null, _album :null, _subalbums:null, _subphotos: ... _album) Why use them? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Why "private" methods in the object oriented?

I understand it is a very basic concept in the oops. But still I cannot get my head around. I understood why ... can this apply to the methods ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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676 views

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oop - What is an abstract data type in object oriented programming?

What is an abstract data type in object oriented programming? I've gone through the wiki for this topic, but ... it. Could someone clarify? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Python - why use "self" in a class?

How do these 2 classes differ? class A(): x=3 class B(): def __init__(self): self.x=3 Is there any significant difference? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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741 views

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oop - Object oriented javascript with prototypes vs closures

I'm curious what the difference is between the following OOP javascript techniques. They seem to end up doing the ... ; alert(myBook.getTitle()) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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825 views

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oop - What is an abstract class in PHP?

What is an abstract class in PHP? How can it be used? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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667 views

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oop - What does "S3 methods" mean in R?

Since I am fairly new to R, I do not know what the S3 methods and objects are. I found that there are ... R Style Guide hyperlink is now here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

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oop - Aspect Oriented Programming vs. Object-Oriented Programming

Like most developers here and in the entire world, I have been developing software systems using object-oriented ... somebody have the answer? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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568 views

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oop - Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)

I mean, aside from its obligating name (the Standard Template Library)... C++ initially intended to present OOP ... you read that far :P) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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606 views

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oop - map set/get requests into C++ class/structure changes

I'm trying to figure out what is the best approach here. Basically I have a system where I receive external ... ) in a generic way. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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657 views

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oop - Java method overloading + double dispatch

Can anybody explain in detail the reason the overloaded method print(Parent parent) is invoked when working with Child ... .doJob(worker); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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556 views

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oop - How does virtual method invocation work in C++?

How does Virtual Method Invocation work in C++? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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704 views

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oop - Why are my JavaScript object properties being overwritten by other instances?

I created an object like the following. var BaseObject = function(){ var base = this; base.prop; base. ... does would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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oop - Multiple Inheritance in java

Java is not allowing inheritance from multiple classes (still it allows inheritance from multiple interfaces.), I ... multiple base class ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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772 views

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oop - Why can't I declare C# methods virtual and static?

I have a helper class that is just a bunch of static methods and would like to subclass the helper class. Some ... wasn't for a bit there. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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767 views

1 answer

oop - javascript: how adding event handler inside a class with a class-method as the callback?

How do i add an event handler inside a class with a class-method as the callback ??? <div id="test">move ... : https://jsfiddle.net/sepfsvyo/1/ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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659 views

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oop - What is the real difference between "Bastard Injection" and "Poor Man's Injection"

From the Dependency Injection in .NET book I know that the object graph should be created at the Composition ... someone please clarify it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

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oop - What is the best way to create a sparse array in C++?

I am working on a project that requires the manipulation of enormous matrices, specifically pyramidal summation for a ... of a better system? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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640 views

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oop - What is composition as it relates to object oriented design?

I hear (and read on this site) a lot about "favour composition over inheritance". But what is Compositon? I ... . Can somebody fill me in? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

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oop - Creating anonymous objects in php

As we know, creating anonymous objects in JavaScript is easy, like the code below: var object = { p : " ... we create anonymous objects in PHP? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

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oop - What is method hiding in Java? Even the JavaDoc explanation is confusing

Javadoc says: the version of the hidden method that gets invoked is the one in the superclass, and the ... this will be highly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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628 views

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oop - How do you deal with polymorphism in a database?

Example I have Person, SpecialPerson, and User. Person and SpecialPerson are just people - they don't have a user ... a user) and vice-versa? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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