overriding

We always say that method overloading is static polymorphism and overriding is runtime polymorphism. What exactly do we mean by static here? Is the call to a method resolved on compiling the code? So whats the difference between normal method call and calling a final method? Which one is linked at compile time? RHSeeger Method overloading means making multiple versions of a function based on the inputs. For example: public Double doSomething(Double x) { ... } public Object doSomething(Object y) { ... } The choice of which method to call is made at compile time. For example: Double obj1 = new

In C++, will a member function of a base class be overridden by its derived class function of the same name, even if its prototype (parameters' count, type and constness) is different ? I guess this a silly question, since many websites says that the function prototype should be the same for that to happen; but why doesn't the below code compile? It's a very simple case of inheritance, I believe. #include <iostream> using std::cout; using std::endl; class A {}; class B {}; class X { public: void spray(A&) { cout << "Class A" << endl; } }; class Y : public X { public: void spray(B&) { cout <<

So, I'm trying to figure out the best (most elegant with the least amount of code) way to allow overriding specific functions of a property (e.g., just the getter, just the setter, etc.) in python. I'm a fan of the following way of doing properties, due to the fact that all of their methods are encapsulated in the same indented block of code (it's easier to see where the functions dealing with one property stop and the functions dealing with the next begin): @apply def foo(): """A foobar""" def fget(self): return self._foo def fset(self, val): self._foo = val return property(**locals())

Given the following code fragment, what are the differences in the function calls? What is function hiding? What is function overriding? How do they relate to function overloads? What is the difference between the two? I couldn't find a good description of these in one place, so I'm asking here so I can consolidate the information. class Parent { public: void doA() { cout << "doA in Parent" << endl; } virtual void doB() { cout << "doB in Parent" << endl; } }; class Child : public Parent { public: void doA() { cout << "doA in Child" << endl; } void doB() { cout << "doB in Child" << endl; } };

I want to use a .py file like a config file. So using the {...} notation I can create a dictionary using strings as keys but the definition order is lost in a standard python dictionary. My question: is it possible to override the {...} notation so that I get an OrderedDict() instead of a dict() ? I was hoping that simply overriding dict constructor with OrderedDict ( dict = OrderedDict ) would work, but it doesn't. Eg: dict = OrderedDict dictname = { 'B key': 'value1', 'A key': 'value2', 'C key': 'value3' } print dictname.items() Output: [('B key', 'value1'), ('A key', 'value2'), ('C key',