Java递归求和1+2+3+...+n

public class Sum {

	public static int count(int n) {

		if (n > 1) {
			return count(n - 1) + n;
		} else {
			return n;
		}
	}

	public static void main(String[] args) {
		System.out.println(Sum.count(100));
	}
}