Method numberOf2s

java/Chapter 18/Question18_4/QuestionBrute.java:5–14

(int n)

public class QuestionBrute {

	public static int numberOf2s(int n) {
		int count = 0;
		while (n > 0) {
			if (n % 10 == 2) {
				count++;
			}
			n = n / 10;
		}
		return count;
	}
	
	public static int numberOf2sInRange(int n) {
		int count = 0;