Elements of an array are accessed by specifying the index ( offset ) of the desired element within square [ ] brackets after the array name.
Array subscripts must be of integer type. ( int, long int, char, etc. )
VERY IMPORTANT: Array indices start at zero in C, and go to one less than the size of the array. For example, a five element array will have indices zero through four. This is because the index in C is actually an offset from the beginning of the array. ( The first element is at the beginning of the array, and hence has zero offset. )
Landmine: The most common mistake when working with arrays in C is forgetting that indices start at zero and stop one less than the array size.
Arrays are commonly used in conjunction with loops, in order to perform the same calculations on all ( or some part ) of the data items in the array.
