New to java need help please!!

please help me figure this out i would highly appreciate it :)

Write a java code that asks the user for an Integer and then counts down from that number to 0. Printing each number.

For example:

Enter an Integer: 5 (enter) <--- user hits the enter key

5

4

3

2

1

0

import java.util.Scanner;

public class Exam{

public static void main(String args[]){

Scanner in = new Scanner(System.in);