Top "Instance" questions

In object-oriented programming an instance is an occurrence or a copy of an object, whether currently executing or not.

Can we create an object of an interface?

interface TestA { String toString(); } public class Test { public static void main(String[] args) { System.out.println(new TestA() { public String …

java oop interface instance anonymous-class
"New" Excel.Application vs Excel.Application

I am seeking clarification on the impact of "New" on the objects and the script. My understanding is that if …

vba excel instance excel.application
Local Declaration "x" hides instance variable xcode warning

I've been have trouble understand this problem. If I change the variable name fifthViewController the error goes away but the …

iphone uinavigationcontroller instance
Updating Class variable within a instance method

class MyClass: var1 = 1 def update(value): MyClass.var1 += value def __init__(self,value): self.value = value MyClass.update(value) a = …

python class methods instance
No such instance field

I'm trying to get my application to save some data when the orientation of the screen is changed using the …

java android variables instance
"No enclosing instance of type" error while calling method from another class in Android

Colleagues, I have the such question: 1. In my first class I have the public class parseYouTubeAndYahoo extends AsyncTask<String, …

android methods android-asynctask instance
Access parent class instance attribute from child class instance?

How to access "myvar" from "child" in this code example: class Parent(): def __init__(self): self.myvar = 1 class Child(Parent): …

python class instance parent
Getting all instances of a class

Possible Duplicate: Is there a simple way of obtaining all object instances of a specific class in Java In java, …

java class instance
Ruby on Rails - Access controller variable from model

I am trying to access an instance variable which is set in the controller in the model. The controller is …

ruby-on-rails ruby model instance
python class instance variables and class variables

I'm having a problem understanding how class / instance variables work in Python. I don't understand why when I try this …

python class variables instance