There are a couple of options for how to get input in a Java program that we have covered so far...

You can indeed use Scanner. You can construct a Scanner object wherever it makes sense (probably in main, for a little example like this) and use it to read input from stdin. Our slides and the documentation for Scanner have various examples on how to use Scanner and the methods it provides.

Alternatively, you could parse your input from command line arguments. Recall that the String[] args parameter of the main method is a list of the arguments passed when your program was run from the command line. You can use something like Integer.parseInt() to parse one of the arguments as an input that you can then pass to your method.

Of course there are several other ways of getting input into your programs at runtime, but either of these should be suitable for your purposes.

Cheers,
Gozz