Category "class"

Parts of a structure in C++ [closed]

Here is a code of a structure. On that there is a BSTree function included on the structure. I am stuck because I do not understand how a func

How do I create a scoped class without @include?

I managed to create a scoped CSS class like this: .container { @import "./baa"; /* other props ... */ } but since @import is getting depreciated,

Is field initialization by another field permitted?

I'm trying to do this in my class: class Foo { _errorHappened = new Subject(); errorHappened = this._errorHappened.asObservable(); } I'm using a field'

ReferenceError: can't access lexical declaration `Tag' before initialization

Hi I'm working on a Vanilla JS SPA project, and I wanted to implement some principles from React, but just in plain JavaScript. But there is an issue with impo

method validateAge in class UserValidator cannot be applied to given types; validator.validateAge();

I need some explanation about what have I done wrong and how to do it better. Sometimes it's difficult for me to understand everything. public class UserValidat

AttributeError: 'super' object has no attribute 'word_weighting'

I have a super class FTM: class FTM: def __init__(self,word_weighting = 'normal'): self.word_weighting = word_weighting def get_sparse_glob

Instancing objects with loop and get one dataframe from it

I have defined a class "Scraper" and the method "scraping" contained in it outputs a list with price information ("results"). My objects are several online shop

Maven Fatal error compiling: directory not found: maven-compiler-plugin

I am trying to run the official Java EE 7 Tutorial code examples and get the error. I have read about it here and most of the results say that you have to check

How can I extend a 3rd party Javascript object using typescript

I've been trying to figure out how to do this most of the after noon, and I'm either not getting something, or I'm approaching things wrong. I'm currently worki

Class template with methods already defined

I have two methods inside a class (mask_im and save_im) that I must include in several other classes in separate modules. How can I create a class with those tw

Class template with methods already defined

I have two methods inside a class (mask_im and save_im) that I must include in several other classes in separate modules. How can I create a class with those tw

I need to decrease a value of the property only from specific class objects

I have three classes and two of them inheriting from an Animal class, Carnivore class should have method to decrease health by 50 if I call the method on Herbiv

Pool within a Class in Python

I would like to use Pool within a class, but there seems to be a problem. My code is long, I created a small-demo variant to illustrated the problem. It would b

Win32 window instances behaving differently

I have created a window class using the win32 api. It creates a window, passing in this as a parameter so that I can create and grab the object instance inside

Understanding __init_subclass__

I finally upgraded my python version and I was discovering the new features added. Among other things, I was scratching my head around the new __init_subclass__

Class is public, should be declared in a file named .java

I'm having this problem which I'm not sure why it's caused. "class Account is public, should be declared in a file named Account.java" I have 5 classes in my

Classes with property referencing other classes

I'm creating a library, and one part of it requires a structured model. Let's say we have sections, and each section can have subsections (categories). All of t

Listing all class attributes swift 3

I'm trying to print all the values from an object that inherits from a class, here is my example: I create the class: class Pokemon { var name: String? va

How to update history dictionary attribute of a class instance and preserve order?

I am new to class programming. I am trying to save initial attributes (which are a dictionary) of my object in its history, and then update history with the cha

ProGuard - unexpectedly contains class

While I'm trying to obfuscate simple DataLoader.class file in ProGuard I get this error: Reading program directory [C:\Users\uzytkownik\Documents\NetBeansProje