Regex to match continuous pattern of integer then space

Question

I\'m asking the user for input through the Scanner in Java, and now I want to parse out their selections using a regular expression. In essence, I show them an enu

Answer 1

To "parse out" the integers, you don't necessarily want to match the input, but rather you want to split it on spaces (which uses regex):

String[] nums = input.trim().split("\\s+");

If you actually want int values:

List selections = new ArrayList<>();
for (String num : input.trim().split("\\s+"))
    selections.add(Integer.parseInt(num));