All Questions
304
questions
0
votes
0
answers
34
views
Initializing Array size to the size that is initialized in constructor throws ArrayIndexOutOfBoundsException [duplicate]
I'm trying to create a Shelter Class, where i can shelter Animals(which is another class that has two extensions Catg,Dog) but when i initalize the shelter's size with a constructor and then ...
0
votes
3
answers
36
views
Primitives class variables of metaclass not shared between subclasses in python, but objects are, why?
consider these two pieces of code:
class M(type):
hey = []
class S(metaclass=M):
pass
class N(metaclass=M):
pass
print(S.hey) # output []
print(N.hey) # output []
S.hey.append(6)
...
- 69
-3
votes
1
answer
60
views
Why does the below python code not throw error? [closed]
How does line 3 even get executed even though the function two() is defined below one() which makes it out of scope?!
def one():
temp = "I am Aditya"
return two
def two(temp):
...
0
votes
0
answers
29
views
How can i make all variables outiside accessible inside a method in PHP
I undestand that would be considered a bad practice but my purpose is just for study, i wanna undestand if a function "render" with a include inside, can have this include to have access to ...
0
votes
1
answer
354
views
setInterval returns undefined OR scope of returned value wrong [duplicate]
I try to store Date.now() after a setIntervall invoked a callback. After that, I'd like to clear the intervall, so it only fires once. All that in a class.
But the variable I store the intervalID in ...
- 3
0
votes
1
answer
29
views
C++, conflicting between library function and inhertited class function [duplicate]
#include <iostream>
#include <unistd.h>
using namespace std;
class A{
public:
bool close(){ return true; }
};
class B: public A{
public:
void fun(){
(...
- 11
0
votes
2
answers
96
views
How to scope internal functions within a MAIN function?
My young son and I were playing a board game called Snails Pace. Simple enough, so I sat down to show him the game on the R-console.
Helper function
num.round = function(n, by=5)
{
byidx = (n ...
- 973
1
vote
1
answer
61
views
Would scope would this variable(s) belong to?
class Something:
x = "hi"
def func(self):
k = "hi2"
In this piece of code, x as a class attribute and k as a variable. What scope (local, enclosed, global, builtin)...
user19742325
0
votes
1
answer
79
views
Using Tkinter and OOP to create transition frames in different classes (Python)
I am creating frames for my project and so far I have it where it goes from the home page to the main page when the button is clicked. The problem I am facing is when I try to go from the home page to ...
user19636979
1
vote
2
answers
189
views
Attempting OOP for Python RPG
I am trying to learn Python OOP and have been struggling to understand scope, passing values and how to encapsulate. My earlier attempts have rapidly become spaghetti code (likely because my only ...
- 41
0
votes
1
answer
64
views
How do I pass a variable from one method to another within the same class in Dart?
I am trying to pass the "l" variable from the purchase method to greet method within the same "Customer" class. How can I do this?
I have tried in many ways but couldn't get the ...
0
votes
0
answers
89
views
variable reassignment issue in java
I have my code behaving the way I'm expecting it to behave except for one last issue. In the while loop within void main() while (gameStatus == Status.CONTINUE) I'm trying to set the variable ...
- 67
1
vote
1
answer
256
views
How to deal with ctime includes within the scope of a class in CPP?
I want to use <ctime> inside the scope of a class in C++. However, whenever I try to compile the following class, I get the error:
error: 'time' cannot be used as a function
time_t now = ...
- 165
0
votes
2
answers
113
views
OOP Question About Vanilla JS: The class's constructor won't accept the variable I'm feeding it as a parameter
I'm trying to learn OOP through practice, but I'm pretty stuck at this point.
This is the code:
const itemEdit = () => {
let editIndex = buttonObj.editArr.indexOf(editID);
console.log(`the ...
0
votes
2
answers
191
views
Is there a way for classes to communicate with one another without connecting them through object references?
The hardest problem I'm having is illustrating the problem. It runs, but it feels like there's a much cleaner way to achieve the same thing. Is there a way for a method in one class to communicate ...
