The static keyword can be used to make class members static. When we declare a class member as static, it indicates that no matter how many objects of the class are generated, the static member will only exist once. All objects in the class share a static member.
Static member functions keep a single copy of a class member function across all of the class's objects. The class name and:: (scope resolution operator) can be used to run static member functions either independently or in conjunction with an object.
In C++, there is no such thing as a static class. A class with solely static data members and static methods is the closest approach. Because there is only one copy of static data members in memory, they are shared by all class objects, regardless of the number of objects in the class.
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