What is a namespace? What happens when two namespaces having the same name?

What is a namespace? What happens when two namespaces having the same name?

- A conceptual space for grouping identifiers, classes etc. for the purpose of avoiding conflicts with the elements of an unrelated code which have the same names.
- When two name spaces are having same name, the corresponding compiler uses our name spaces instead of the type.

Define namespace in C++.

Namespaces groups together entities like classes, objects and functions under a name. Namespaces provide a way to avoid name collisions of variables, types, classes or functions. Namespaces reduces the use of nested class thus reduces the inconvenience of handling nested class.

Define namespaces.

- Namespace is used to group together all the related classes.
- To use namespace, using keyword or scope resolution operator can be used.
namespace emp
{
   class Manager
   {
       public:
          static void showDetail()
          {
             ....
             ...
          }
   };
}
- To use :
emp::Manage::showDetail();
or
using namespace emp;
Manager::showDetail();
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