Sevens puzzle

Sevens.java

public class Sevens {
	public static void main(String[] args) {
		int min = 1;
		int max = 100;
		
		int seven = 0;
		for (int k=min; k<=max; k++) {
			if ((k / 1) % 10 == 7) {
				seven++;
			}
			if ((k / 10) % 10 == 7) {
				seven++;
			}
			if ((k / 100) % 10 == 7) {
				seven++;
			}
			if ((k / 1000) % 10 == 7) {
				seven++;
			}
			if ((k / 10000) % 10 == 7) {
				seven++;
			}
		}
		
		System.out.println(seven);
	}
}