Arrays and Iterations

One of the simplest but most important and fundamental data structures is the dimensioned variable or array, consisting of elements each of the same data type. In all the languages we are discussing, arrays can be created and individual elements referred to by the use of subscripts. The common technique is that the array name is followed by the subscript or (if there are more than one) subscripts, enclosed in brackets. The brackets are of course necessary, in all cases, because of the limitation on type founts and the necessity of distinguishing subscripts from the name of the array.