错误写法:
int[] nums = new int[10]; Arrays.sort(nums, (x,y)->(y-x));
正确写法:
Integer[] nums = new Integer[10]; Arrays.sort(nums, (x,y)->(y-x));

错误写法:
int[] nums = new int[10]; Arrays.sort(nums, (x,y)->(y-x));
正确写法:
Integer[] nums = new Integer[10]; Arrays.sort(nums, (x,y)->(y-x));