Question

I have an upper bound and a lower bound and I want to return all number number between the bounds including the bounds. I know python has a range function but I’m sure if java has this method.

Answer 1

You can just use a for loop. Do you want to print them or return them? Your title and question disagree on this. If you want to return them, you will need to pick the type that you use to contain them.

List<Integer> ret = new ArrayList<Integer>();
for (int i = lower; i <= upper; i++) {
    ret.add(i);
}
return ret;

I will leave it as an exercise to print them, or to get them in descending order.