In C++, what is the difference between method overloading and method overriding?

[chinmay]

Overloading a method (or function) in C++ is the ability for functions of the same name to be defined as long as these methods have different signatures (different set of parameters). Method overriding is the ability of the inherited class rewriting the virtual method of the base class.

[JamesMartin]

Overloading is having the same class with different parameters and overriding that classes whose body can ride through different classes calling like virtual classes.

[raj_gawdi]

- Overriding of functions occurs when one class is inherited from another class. Overloading can occur without inheritance.
- Overloaded functions must differ in function signature ie either number of parameters or type of parameters should differ. In overriding, function signatures must be same.
- Overridden functions are in different scopes; whereas overloaded functions are in the same scope.
- Overriding is needed when derived class function has to do some added or different job than the base class function.
- Overloading is used to have same name functions which behave differently depending upon parameters passed to them.

[traveloweb]

In Method Overloading, Methods of the same class shares the same name but each method must have different number of parameters or parameters having different types and order.
Method Overloading means more than one method shares the same name in the class but having different signature.
Method Overloading is to “add” or “extend” more to method’s behavior.
In Method Overloading, methods have same name different signatures but in the same class.

In Method Overriding, sub class have the same method with same name and exactly the same number and type of parameters and same return type as a super class.
Method Overriding means method of base class is re-defined in the derived class having same signature.
Method Overriding is to “Change” existing behavior of method.
In Method Overriding, methods have same name and same signature but in the different class.

[dpkmlm]

Method overloading deals with the notion of having two or more methods in the same class with the same name but different arguments. Method overriding means having two methods with the same arguments, but different implementations.

[fayeseom]

Overloading means writing a method with the same name but differnt parameters. One class can have multiple overloads of a given method each with their own code.Overriding is when a sub-class redefines a method already defined by the parent class