Thread: How do you create a mathematical sequence?

I want to declare integers, while the program is running.

I run the program and then I give it via System.in.println an integer and repeat this as long as I want. I want the program to give those integers a name of a certain type for, for example a(i) or a[i], dunno, (it should be handy) and then a(i) represents the the i'th integer I gave the program. My idea is then that I can use those elements by their name just like, if I had declared them in the first place. For example add two integers together. For example I defined a method add+, which waits for 2 integer and then adds them. For example I write:

add

a(2)

a(47)

(then I would get here the result.)

I don't think implementing the add function is difficult. However I don't know, how to let the program count the number of inputs or how to let it declare and use variables.

What have you written thus far?
Toss it between some code tags.

Well, you would have to write some way to store those values in variables. Perhaps a map might be useful to you if the user can declare the variables names. You also need to be able to parse the Strings.