可変パラメータを持つほかに

可変パラメータを持つほかに

public class Test {
    public static void main(String[] args) {
        int[] array = {1,2,3,4,5,6,7,8,9,10};
        System.out.println(sum(array));
        System.out.println(sum(new int[]{1,2,3,4,5}));//匿名数组
        System.out.println(sum(1,2,3,4,5,6,7,8,9,10,11));

    }
    public static int sum(int... a) {//可变参数编程
        int ret = 0;
        for (int x:a) {
            ret += x;
        }
        return ret;
    }
}