Character and Strings are both native basic types.
Strings are (as in Pascal) an array of characters. As such, their lengths are fixed. But there are ways around this.
S : String := "Strings have double quotes. like " & '"' & "here" & '"' & "and characters only single quotes 'a'. They concatenate into strings by the '&' symbol."
C : Character := 'c';
the symbol & is the concatenation operator for all arrays, but it becomes more of a priumary feature on strings.