Recent questions tagged oop

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618 views

1 answer

oop - Getting the name of a child class in PHP

Lets say I'm building a base class which will be extended upon by the children class. So a base class is called Base and children can be Child1, ... the value of Child1/Child2? This is all using PHP See Question&Answers more detail:os...

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

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597 views

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oop - Sharing Realm fields on Android

Realm on Android doesn't support model inheritance/polymorphism. So is there any way to share fields on Android? We have 5 models that all share the ... stretching my OOP skills... 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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582 views

1 answer

oop - Global (shared) variables in Matlab GUI code behind. Is there better way to do it then using handles structure?

I have spent some time lately creating complex Matlab GUI tool. I'm using GUIDE GUI builder. I dislike the way Matlab manages global variables in code ... variables in Matlab GUI then please suggest it. See Question&Answers more detail:os...

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

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563 views

1 answer

oop - Python: Can subclasses overload inherited methods?

I'm making a shopping cart app in Google App Engine. I have many classes that derive from a base handler: class BaseHandler(webapp.RequestHandler): ... BaseHandler): def body(self, CSIN): #@UnusedVariable See Question&Answers more detail:os...

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

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831 views

1 answer

oop - PHP: array_map on object?

I'm trying to write a function that formats every (string) member/variable in an object, for example with a callback function. The variable ... something similar to array_map or array_walk with objects? See Question&Answers more detail:os...

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

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560 views

1 answer

oop - Calling non-static method from static one in Python

I can't find if it's possible to call a non-static method from a static one in Python. Thanks EDIT: Ok. And what about static from ... ... @staticmethod def static_method_two(cmd): static_method_one(cmd) See Question&Answers more detail:os...

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

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531 views

1 answer

oop - In Python, can you call an instance method of class A, but pass in an instance of class B?

In the interest of reusing some existing code that was defined as an instance method of a different class, I was tying to do something like the following: ... turns out there is. Thanks for the comments. See Question&Answers more detail:os...

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

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440 views

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oop - Memory-Allocation for function calls of form x = f(x) in MATLAB

In my code, I have lots of places where I invoke functions of the form X = f(X) and X can be a rather large matrix. In my special case, I ... in the class, although I would rather not do this otherwise. See Question&Answers more detail:os...

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

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602 views

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oop - Call Python Method on Class Attribute Change

I'm writing an API parsing Twitter bot and am very new to OOP. I have some existing Python code that relies on global variables and figured I could take ... it need to be passed to that variable as well? See Question&Answers more detail:os...

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

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414 views

1 answer

oop - Fortran Functions with a pointer result in a normal assignment

After some discussion on the question found here Correct execution of Final routine in Fortran I thought it will be useful to know when a function with a ... make sense to use one or the other assignment? See Question&Answers more detail:os...

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

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580 views

1 answer

oop - Importance of protected/private in PHP classes

Usually when I see PHP classes, most of the variables and functions are either private or protected. Because the PHP is executed on the server side, ... available for security or am I missing something? See Question&Answers more detail:os...

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

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685 views

1 answer

oop - How to call parent class' method from a subclass in JavaScript so that parent's local variables would be accessible?

I'm using one of the approaches to class inheritance in JavaScript (as used in the code I'm modifying), but do not understand how to attach additional ... Child(7); child.MethodA(); child.MethodB(); See Question&Answers more detail:os...

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

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401 views

1 answer

oop - Lua metatables and metamethod - How to call a different member function

I have the following Class local PROGRESS = {} PROGRESS.__index = function(self,key) if key~="__group" and self.__group[key] then return self. ... self instead of progress_object. Hope that makes sense. See Question&Answers more detail:os...

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

0 votes

563 views

1 answer

oop - Get variable name of object inside the object php

I'm wondering if this was possible and I could not find a way to do it so I ask. How can I get the name of the variable where in a ... instance1 instance2 boeh Why! Well I just wanna know its possible. See Question&Answers more detail:os...

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

0 votes

615 views

1 answer

oop - Why Data type in java are not object?

I have studied about java datatype very earlier and found that they are primitive type. As java is object oriented but its data types are not. why is it so? See Question&Answers more detail:os...

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

0 votes

589 views

1 answer

oop - C# Custom Observable Collection - Should I use Composition or Inheritance?

I want to create a custom observable collection (can be bound to in XAML), but I want to track additional information which requires overriding observable ... t support, but can't hide via inheritance. See Question&Answers more detail:os...

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

0 votes

675 views

1 answer

oop - How to override private variable in javascript?

// base function function Man(name) { // private property var lover = "simron"; // public property this.wife = "rocy"; // privileged method this. ... . How my understanding is wrong? 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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511 views

1 answer

oop - Why is an interface or an abstract class useful? (or for what?)

So my question is, why to use interfaces or abstract classes? Why are they useful, and for what? Where can i use them intelligently? See Question&Answers more detail:os...

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

0 votes

630 views

1 answer

oop - declaring protected variable in javascript

How do i declare protected variable. Let me give an example here // Constructor function Car(){ // Private Variable var model; } // Public variable Car ... as ic.variabl that is also present in car class. See Question&Answers more detail:os...

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

0 votes

653 views

1 answer

oop - Access of Non-Static Function of a Class in PHP

Why is this legal in PHP? <?php class Foo { public function test() { echo "hello "; } } Foo::test(); ?> test() is a non-static function but I can access it without an instance. See Question&Answers more detail:os...

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

0 votes

584 views

1 answer

oop - Sharing objects between PHP classes

What is the best way to share objects between other classes? For example; a "database" object with functions that are required by the "article" and "user" ... new test( $database ); Be the way to go? See Question&Answers more detail:os...

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

0 votes

463 views

1 answer

oop - Best way to implement a decorator pattern for method result caching in PHP

I have a set of classes which have a habit of being called repeatedly with the same arguments. These methods generally run database requests and build ... such but can't really see anything. Thanks! See Question&Answers more detail:os...

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

0 votes

481 views

1 answer

oop - Matlab - Handle object properties of unique objects refer to the same object?

I am confused on how to use handle objects as properties in matlab. For example, I defined the following classes: classdef Page < handle properties ... misunderstanding? How do I deal with this issue? See Question&Answers more detail:os...

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

0 votes

521 views

1 answer

oop - Should I use unset in php __destruct()?

Is it a good practice to unset the variables that you used in a class? Or its an optional? If its a good practice what is the benefit of using the unset function? See Question&Answers more detail:os...

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

0 votes

587 views

1 answer

oop - Accessing a parents variable from subclass php and parent keyword?

I have a parent class and a subclass, the parent class has a constructer that sets a var and I would like to use that var in the subclass, I have it working ... __construct() { $this -> myVar = 'a'; } } See Question&Answers more detail:os...

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

0 votes

537 views

1 answer

oop - Why can't I call a protected method from an inheriting class in another package in Java?

Say there's the following base class: package bg.svetlin.ui.controls; public abstract class Control { protected int getHeight() { //.. } //... } ... even if the latter are in a different package. Thanks! See Question&Answers more detail:os...

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

0 votes

522 views

1 answer

oop - How do you copy a PHP object into a different object type

New class is a subclass of the original object It needs to be php4 compatible See Question&Answers more detail:os...

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

0 votes

538 views

1 answer

oop - What is the max level of inheritance in java?

I was wondering if there is a finite number of time that I can inherit a class? Or what are the factors that can influence this? See Question&Answers more detail:os...

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

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