Write a program

Question

To show that the declaration of a class " rectangle" which derives from the class "Square" which in turns derive from the class " shape"

Answer 1

class Shape {};
class Square: Shape {};
class Rectangle: Square {};
int main() {
return 0;
}

Answer 2

Because the syntax of defining a class requires them. Within them, you would declare whatever properties and methods you would like the classes to contain.

Answer 3

I understand your concept but can you explain why are you using curly braces.