Questions tagged [instances]

An instance is a specific realization of any object.

516 questions
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Access to the methods of the class from which it was instantiated another class

I'm trying to access the methods of the class from which it was instantiated another class, I mean, accessing to the "parent" instance without creating a new instance of it. class A(): def __init__(self): ... b_instance = B()…
kmsdev
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Is there any way to create a new Category instance automatically when launching app?

I have a Category model and an Article model. The association is set up so a Category has many articles. A regular user should not be able to create a user. I was wondering, is there any way in Rails for me to automatically create instances of…
kwngo
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Can you pass an argument in Python that becomes a class instance?

This may be a simple question but I haven't found the answer to this online anywhere. I want to take an argument or input and use that name to create an instance of a class. Is that possible? Example: def make_instance(argument): # argument =…
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Haskell - create instance of class (how to do it right?)

I read the chapter about that topic in "learn you a haskell" and tried to find some hints on different websites - but are still unable to solve the following task. Im a haskell newbie (6 weeks of "experience") and its the first time I have to work…
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Using an Array of Class Instances in multiple source files

I am trying to access an array of class instances from two source files, was hoping you could point me in the right direction. Here's roughly what I have so far. //X.h extern Object myObj[5]; //A.cpp #include X.h Object…
GeorgeV
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Getting objects inside definitions Python/Django

My question is how do I get an object inside of a function? class PurchaseOrder(models.Model): product = models.CharField(max_length=256) vendor = models.CharField(max_length=256) def send_email_on_new_order(instance, created, raw,…
Mdjon26
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C# Add extension method to instance of class?

I basically want to inject an extension method to each copy of ArrayList, which would perform the following behavior: ArrayList ourList = new ArrayList(); ourList.Add(randomarray or random arraylist); It'd add the CONTENT of the given array,…
Jan Berktold
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New object instance not being recognized- Java

I am having trouble getting a random generator instance from being recognized as an object and it won't allow for use within another .class file. The base code for the random integer generator is this: package RandomInstanceGenerator; import…
userLost
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C#, Can't load multiple instances of a plugin

I have a single plugin, that takes value for an input and returns the result. I'm loading it like this: public void load_modules() { string path = Assembly.GetExecutingAssembly().GetModules()[0].FullyQualifiedName; string pluginDir =…
user1015551
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Line from one instance to another not working Action Script 3.0

I am trying to create to movable instances, that are draggable, and which have a line connecting them which updates automatically. The thing is: The original line just goes randomly and doesn't update as the instances (mc1, mc2) are being dragged. …
8-bit mate
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Amazon VPC Subnet and IP

This question is for AWS Engineers. I was reading about AWS VPC. It says VPC peering allows to connect 1 subnet to another subnet inside another VPC. Also it says, Instances on both subnet work as if they were in 1 subnet. So the question comes,…
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abbr several times with one tag

I'm writing a walk-through, and I'd like the reader to be able to hover over a word from anywhere within the script and get the definition, but I'd like to only define the abbr once. Is there a way in html or css that I can do this?
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How to define an instance of a class by user input?

I have been trying to create a program that calculates and records calories contained in certain meals, and I have a class named 'Food' which I would like to create instances of by user input. I have done a good lot of searching and haven't found…
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Adding instances to a list

Overview My group has built hardware that needs to communicate with software that we're supposed to write. However we all are at a standstill because we can't figure this issue out. We have searched a lot but to no avail. We would love ANY help.…
e_phed
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OpenGL - How can I get individual rotating?

I got some problem with OpenGL matrix system. I made five instances like below. I want to get their individual working. C_IMGMGR cImgmgr1( 200 , 170 ); C_IMGMGR cImgmgr2( 200 , 170 ); C_IMGMGR cImgmgr3( 200 , 170 ); C_IMGMGR cImgmgr4( 200 , 170…
JYO
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