Instantiation is the process of creating objects from a class in most object oriented and object based languages. In the C++ language, instantiation is the process of creating a class or function from a class template or function template.
Questions tagged [instantiation]
2609 questions
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2 answers
How can I create a class and object for a tkinter widget in Python?
thanks for reading:
OBJECTIVE:
I am practicing using OOP, and wanted to create a class with class variables for a label widget I'm creating with tkinter. This way I can create many labels and don't need to specify the same font, font size, colors,…
Chris Skutnik
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2 answers
Setting the parent of a transform which resides in a Prefab Asset is disabled to prevent data corruption
I am facing this problem in Unity again and again. I cannot find solution.
I think my code is right, but where is the problem?
GameObject visual = Instantiate(placementObject[num], hit.point + visualOffset, Quaternion.identity);…
Dan Rais
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When is a static class variable defined in a function initialised
I have a static instance of a class defined in a function with {} initialiser in C++
Let us say in the function I increment a counter defined in that class.
In the constructor I have a print statement.
The print statement gets displayed first time…
MTailor
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how do i access an object that i have just instantiated
So I instantiated an Object but i want to change some of its properties right after instantiating it. So i have to do something like:
Gameobject instantiated.GetComponent<>().property = "example Value";
Here is my code so far:
public void…
DoubeJungleMain
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1 answer
Syntax for Instantiating JavaScript Date Objects
In JavaScript, it seems you can do either write:
new Date().getTime();
...or:
(new Date).getTime();
The first one is logical, but the second one seems a little unusual to me... Is there any difference between these two ways of creating a Date…
Steve Harrison
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1 answer
In c++. how to take just a "partial" implementation of a pure abstract class from some class implementation
My Goal: In C# I would write
interface A
{
void fA();
}
interface B
{
void fB();
}
interface AB : A, B
{
}
class SomeImplementationOfJustA : A
{
public void fA() { }
}
…
ste
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Is it possible to assign a data attribute to a superclass, within a subclass?
I'd like to assign a data attribute to an instance of my super class taken at instantiation.
For example:
class Sub(Super):
def __init__(self, name):
self.name = Super.__init__(self, name)
In other words, I want to use as my name what…
Yus Ra
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1 answer
Load class instance from pickle file during instantiation with HIGHEST_PROTOCOL
Goal
When I create an instance of ClassA:
if a pickle file exists, then load the instance from pickle file
if a pickle file does not exist, then create the instance from scratch
use pickle HIGHEST_PROTOCOL.
Fail
Someone reported here the same…
thomast
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How does one correctly implement a constructor function's instance methods?
Following constructor function and log code is given ...
function Car(brand, year, model, color, utilidad) {
this.brand = brand;
this.year = year;
this.model = model;
this.color = color;
this.utilidad = utilidad;
this.useFor = (prmt) =>…
0
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3 answers
How to call a value from another class with 3 java classes
I have 3 java class named Author, Book, and DisplayBook. Author class is for setting the name of the author. Book class is for geting details(title, author, price) of the book and DisplayBook is for displaying the output (title, author, price) in…
WiloWisk
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votes
1 answer
Instantiating Gameobject changes its shape
When instantiating an object from prefab by this way (in an empty project, Unity 2020.3.2f1):
myObject = Instantiate(preObject, Parent.transform);
This one changes myObject's shape very much. Actually, I don't know why.
Found a decision:
myObject =…
A1exander
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votes
1 answer
2D Instantiated object stops moving when used with timer
Hello I'am trying to make a system that instantiate and object, and the moves it to a set of waypoints. When i use intantiate in the Start() function it travels like intended through the waypoints, but when i add the instantiate line to my update()…
DJ HofteOrgel
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Class that stores all essential objects is the right way to go?
The problem is a design problem in Object-Oriented Programming that I'm trying to find or think of the best solution for, And not sure of the solutions I have thought of so far.
The problem:
I wrote a class called ComponentsHub whose idea is to…
InSaNiTy
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Servlet class not instantiated upon "Submit" on JSP --- Servlet instantiating error- HTTP 500 - Eclipse
Getting a HTTP 500 error instantiating a server.
java.lang.ClassNotFoundException: com.expend.servlets
Following are the troubleshooting steps I have taken
Servlet annotation :
@WebServlet("/LoginServlet")
has been removed and only web.xml was…
Raghu
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2 answers
How to instantiate view controller from GIDSignIn method in AppDelegate?
I have my Google Sign In methods within my AppDelegate. Once a user is authenticated with Google, I would like them to be brought from the sign-in page to the homepage. Here's the relevant code in my AppDelegate:
var window: UIWindow?
func sign(_…
amirbt17
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