Enumeration/iteration definitions

Question

Could someone explain to me the difference between enumeration and iteration? Do either of them do anything special to the contents of a vector?
I have a vector that contains something like [6, +, 9, *, 15, +, 10]. What I need to do is turn this into an equation and calculate it. i.e. x=6+9*15+10;
Can this be accomplished by the use of an interator or enumerator? Or am I way off base? Another solution I thought of is to use toString() for the Vector, and then convert the numeric Strings into integers, but have no idea what to do with the operators as I do not believe Java considers them Strings.

Answer 1

Thanks for letting me know the difference, it wasn't really clear in the book I have.
The solution you suggested is what I feared. I was hoping Java had some way to recognize the String version of +-*/ as operators. It seems strange to me to have to write a parser to tell it what to do when it sees +-*/ and to tell it the order to evaluate them in. Silly to have to redefine what is already built into Java.
Probably looks like I shouldn't waste my time putting these items into a Vector, they start out in a String format with some additional characters and I have used a StringTokenizer to eliminate the extra chars and put the tokens and delimiters into a Vector. Guess that is overkill, although I thought it would make it easier. Looks like I should call some sort of parsing method while tokenizing or something.