Question

What is the best way to clarify -10 in a whole number?

Answer 1

i say think that you have 10 dollars what you need give to your friend - for example

Answer 2

@AZ

Answer 3

whole numbers are {0, 1, 2, 3, ....}
natural numbers are {1, 2, 3, 4, ...}
integers are {... -3, -2, -1, 0, 1, 2, 3, ....}

you see the classification? in code, they are all "Int".