Differences Between Structures and Arrays?

ARRAY STRUCTURE A) An array is a collection of related data elements Of same type. A) Structure can have element s of Different type. B) An array is derived data B) A structure is a programmer defined one C) Any array behaves like a built in data type. All we have to do is to declare  an array  variable and use it. C) But in the case of a structure, Ist we  have to design and declare a data structure. Before the variables of that type  are declared and used.