Recent questions tagged OOP

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I need a table variable in a Lua class, which is unique for each instance of the class. In the example listed ... need Size: 3 Elements: E1 a See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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959 views

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oop - How to call a protected method in php?

here is the class structure. I want Observer:callme() to be callable from Children too. class Observer { protected ... " and its "Children") See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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782 views

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oop - What is the size of the object in java

As we all know that java uses the following data types byte Occupy 8 bits in memory short Occupy 16 bits in ... reason. Thanks, Anil Kumar C See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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843 views

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oop - Get only declared methods of a class in PHP

Hello I need to get only the methods declared in a class, and not the inherited methods. I need this for ... to get only declared methods. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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898 views

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oop - Javascript function using "this = " gives "Invalid left-hand side in assignment"

I am trying to get a JavaScript object to use the "this" assignments of another objects' constructor, as well ... terminology right. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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oop - Split a Javascript class (ES6) over multiple files?

I have a Javascript class (in ES6) that is getting quite long. To organize it better I'd like to split it over 2 ... // Put in file 2 } Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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845 views

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oop - Perl objects error: Can't locate object method via package

I realise there are several questions like this out in the ether, but I can't a solution for my problem. ... Any help would be appreciated... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.7k views

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oop - PHP Registry Pattern

I've found the piece of code below in several places around the web and even here on Stack Overflow, but I just ... $this->vars[$key]; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

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oop - MATLAB - run object destructor when using 'clear'?

Suppose I have a class myClass < handle. From the Mathworks Help page on clear, Clearing handle graphics handles does ... been a bit too wordy. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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772 views

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oop - C++ multiple inheritance order

I'm trying to understand the affect of inheritance order in C++.. I looked online, but I couldn't find a clear ... A1 and A2? Thanks a lot! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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934 views

1 answer

oop - Getting size in memory of an object in PHP?

There is a way to get the total memory PHP is using (memory_get_usage()) but how does one get the ... a potentially complex data structure. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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778 views

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oop - When to use static modifier in PHP

Doing some code reviews lately I came across a number of classes that have significant number of static ... performance or memory footprint? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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870 views

1 answer

oop - Avoiding 'instanceof' in Java

I have the following (maybe common) problem and it absolutely puzzles me at the moment: There are a couple of ... problem? Thanks for any help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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911 views

1 answer

oop - What is the difference between dynamic dispatch and late binding in C++?

I've recently read about the Dynamic Dispatch on Wikipedia and couldn't understand the difference between dynamic ... the name refers to. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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847 views

1 answer

oop - Accessing clone() from java.lang.Object

Here is something that I cannot understand. In java.lang.Object the clone() is defined with protected modifier. By ... someObject.clone(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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767 views

1 answer

oop - Javascript Object.freeze() does not prevent changes to object

I am trying to understand the Object.freeze method of ECMAscript. My understanding was that it essentially stops ... Any help is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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853 views

1 answer

oop - accessing private variable from member function in PHP

I have derived a class from Exception, basically like so: class MyException extends Exception { private $_type; ... type of exception caught. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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786 views

1 answer

oop - Can I create a javascript object that is casted implicitly as number?

I want to create a class that has several public variables and methods,but behaves as number when arithmetic ... extend the Number object? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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867 views

1 answer

oop - How to get the handle of a method in an Object (class inst) within MATLAB

I'm trying to grab a method handle from within an object in MATLAB, yet something in the sort of str2func('obj.MethodName') is not working See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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886 views

1 answer

oop - Default Class Accessibility in C#

by default is a class: private ? internal ? sealed ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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845 views

1 answer

oop - Java Reflection: get instances of a given class found by entering its name?

Is it possible to get all instances of a class by entering this class's name as a string? Something ... Any feedback is appreciated. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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847 views

1 answer

oop - PHP runtime class modification

So I want to be able to add/remove class methods at runtime. Before you tell me that's horrible pratice in ... don't do this" are appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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983 views

1 answer

oop - Object-Oriented Callbacks for C++?

Is there some library that allows me to easily and conveniently create Object-Oriented callbacks in c++? the language ... tips for me? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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805 views

1 answer

oop - PHP 5.3: Late static binding doesn't work for properties when defined in parent class while missing in child class

Take a look at this example, and notice the outputs indicated. <?php class Mommy { protected static $_data = "Mommy ... , good, bad, or ugly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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752 views

1 answer

oop - Explain to me what is a setter and getter

What are setters and getters? Why do I need them? What is a good example of them in use in an effective ... I get some coding examples please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

oop - Why does PHP not automatically call parent constructors?

Fairly straightforward question. In C++ the parent constructor will be implicitly called before the child ... another question though. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

821 views

1 answer

oop - How does using interfaces overcome the problem of multiple inheritance in C#?

I understand that C# does not support multiple inheritance, and that the solution is to use interfaces ... pitfalls of multiple inheritance? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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838 views

1 answer

oop - What exactly is the model in MVC

I'm slightly confused about what exactly the Model is limited to. I understand that it works with data from a ... in a view, controller, etc? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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