Recent questions tagged oop

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778 views

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oop - Should objects delete themselves in C++?

I've spent the last 4 years in C# so I'm interested in current best practices and common design patterns in ... help clean up these objects? See Question&Answers more detail:os...

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

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706 views

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oop - Is it possible to declare a method static and nonstatic in PHP?

Can I declare a method in an object as both a static and non-static method with the same name that calls the ... ->send(); is it 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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751 views

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oop - Get all defined classes of a parent class in php

I need to determine, after all files have been included, which classes extend a parent class, so: class foo{ } class ... : array('boo','bar'); See Question&Answers more detail:os...

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

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702 views

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oop - How to implement a decorator in PHP?

Suppose there is a class called "Class_A", it has a member function called "func". I want the "func" to do ... put some extra work to a array. See Question&Answers more detail:os...

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

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834 views

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oop - Get all defined classes of a parent class in php

I need to determine, after all files have been included, which classes extend a parent class, so: class foo{ } class ... : array('boo','bar'); See Question&Answers more detail:os...

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

0 votes

696 views

1 answer

oop - How to implement a decorator in PHP?

Suppose there is a class called "Class_A", it has a member function called "func". I want the "func" to do ... put some extra work to a array. See Question&Answers more detail:os...

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

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648 views

1 answer

oop - How to Check for a Specific Type of Object in PHP

I have a method which accepts a PDO object as an argument, to allow the user to use an existing connection ... for a specific type of object? See Question&Answers more detail:os...

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

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665 views

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oop - PHP equivalent of friend or internal

Is there some equivalent of "friend" or "internal" in php? If not, is there any pattern to follow to ... and the system would fall apart. See Question&Answers more detail:os...

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

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762 views

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oop - How to define the subset operators for a S4 class?

I am having trouble figuring out the proper way to define the [, $, and [[ subset operators for an S4 class. ... these three for an S4 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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717 views

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oop - Inheriting methods' docstrings in Python

I have an OO hierarchy with docstrings that take as much maintenance as the code itself. E.g., class Swallow( ... that I hadn't discovered yet? See Question&Answers more detail:os...

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

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599 views

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oop - Python object attributes - methodology for access

Suppose I have a class with some attributes. How is it best (in the Pythonic-OOP) sense to access these ... and I will close this one. See Question&Answers more detail:os...

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

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726 views

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oop - What is the difference between Composition and Association relationship?

In OOP, what is the difference between composition (denoted by filled diamond in UML) and association ( ... convincing real world example? See Question&Answers more detail:os...

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

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790 views

1 answer

oop - Interface Segregation Principle- Program to an interface

I was reading about SOLID and other design principles. I thought ISP was the same as "Program to an interface ... ? Is there a 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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725 views

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oop - What is the real significance(use) of polymorphism

I am new to OOP. Though I understand what polymorphism is, but I can't get the real use of it. ... to implement polymorphism in my application. See Question&Answers more detail:os...

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

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629 views

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oop - Checking Objective-C block type?

This is primarily a curiosity, I'm not really sure what's the practical use of this but here goes. Since blocks ... the correct way to do it? See Question&Answers more detail:os...

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

0 votes

590 views

1 answer

oop - Duck Typing in Javascript

Could someone give me an example of Duck Typing inheritance in Javascript? I'm exploring OO javascript and I've ... it being used in javascript. See Question&Answers more detail:os...

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

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691 views

1 answer

oop - Is there a benefit to defining a class inside another class in Python?

What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. ... .append(DownloadManager.DownloadThread()) See Question&Answers more detail:os...

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

0 votes

563 views

1 answer

oop - How to implement a binary search tree in Python?

This is what I've got so far but it is not working: class Node: rChild,lChild,data = None,None,None def ... __name__ == '__main__': main() See Question&Answers more detail:os...

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

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652 views

1 answer

oop - When do I use static variables/functions in php?

I am refreshing myself on OOP with PHP and I saw an example of setting functions and/or variables as static. ... just use a variable instead? See Question&Answers more detail:os...

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

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627 views

1 answer

oop - interface as a method parameter in Java

I had an interview days ago and was thrown a question like this. Q: Reverse a linked list. Following code ... this. Could somebody enlighten me? See Question&Answers more detail:os...

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

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683 views

1 answer

oop - Mixin vs inheritance

What is the difference between a mixin and inheritance? See Question&Answers more detail:os...

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

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618 views

1 answer

oop - OO Javascript constructor pattern: neo-classical vs prototypal

I watched a talk by Douglas Crockford on the good parts in Javascript and my eyes were opened. At one point he ... Do you have a better one? See Question&Answers more detail:os...

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

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622 views

1 answer

oop - What does 'low in coupling and high in cohesion' mean

I have problems understanding the statement low in coupling and high in cohesion. I have googled and read a ... what low Coupling means? See Question&Answers more detail:os...

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

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749 views

1 answer

oop - Java Increment / Decrement Operators - How they behave, what's the functionality?

It's been 3 days since I start to learn Java. I have this program and I don't understand code in main method ... ; System.out.println(z); } } See Question&Answers more detail:os...

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

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863 views

1 answer

oop - How to preallocate an array of class in MATLAB?

I have an array of objects in MATLAB and I've called their constructors in a loop: antsNumber = 5; for counter ... how to do that for objects. See Question&Answers more detail:os...

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

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808 views

1 answer

oop - When should I declare variables in a PHP class?

I'm new to the OOP paradigm, so there's probably a simple explanation for this question... Do you always ... of declaring them all up front? See Question&Answers more detail:os...

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

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730 views

1 answer

oop - Python overriding getter without setter

class human(object): def __init__(self, name=''): self.name = name @property def name(self): return ... class. Is that pythonicaly 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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687 views

1 answer

oop - Diamond Problem

Wikipedia on the diamond problem: "... the diamond problem is an ambiguity that arises when two classes B and C inherit ... } new D().foo(); See Question&Answers more detail:os...

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

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