20171109 - 03 - classEx_04

package myApp;

import java.util.Scanner;

public class class03_ex04 {

    public static void main(String[] args) {
        //init vars
        int n       = 0;

        //usage msg
        System.out.println("Integer: ");

        //open in_Stream, parse & close
        Scanner s = new Scanner(System.in);
        n = s.nextInt();
        s.close();

        /* Method 1 */
        //loop Until i regresses to 0, and include 0
        for (int i=n; i>=0; i-=1) {
            if (i%3 == 0) { System.out.println(i); } //check if i/3 = Integer, and print n if yes
        }

        /* Method 2
        //overwriting n, therefore destroying data that was input by user - bad practice??
        for (int i=0; i<=n; n-=1) {
            if (n%3 == 0) { System.out.println(n); } //check if i/3 = Integer, and print n if yes
        }*/

    }

}