求输入任意一组数据的平均值

结果图

就用main函数的参数就可以了

    public static void main(String[] args) {
        int sum = 0;
        int length = args.length;
        int[] nums =new int[length];
        System.out.println("参数个数为："+length);
        for(int i =0;i<args.length;i++) {
            System.out.println("args["+i+"]的值是"+args[i]);
            nums[i] = Integer.parseInt(args[i]);
            sum += nums[i];
        }
        System.out.println("平均值是"+(double)sum/length);
    }