10选6代码的扩展

public class CompareData {

	static int count = 0;
	static int[] a = new int[100];

	public static void main(String[] args) {
		int[] n = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
		int length = n.length;
		int r = 6;
		a[0] = r;
		comb(n, length - 1, r);
	}

	public static void comb(int[] n, int length, int r) {
		int i = 0;
		int j = 0;
		for (i = length; i >= r - 1; i--) {
			a[r] = n[i];
			if (r > 1)
				comb(n, i - 1, r - 1);
			else {
				int sum = 0;
				for (j = a[0]; j > 0; j--) {
					System.out.print(a[j] + "、");
					sum += a[j];
				}
				count += 1;
				System.out.println("sum is:" + sum + " count is:" + count);
			}
		}
	}


}