Lc: sword finger offer 39. numbers that appear more than half of the time in the array

There is a number in an array that appears more than half the length of the array , Please find out the number .

You can assume that the array is not empty , And there are always many elements in a given array .

Example  1:

Input : [1, 2, 3, 2, 2, 2, 5, 4, 2]
Output : 2

Method ： The number that is more than half must be in the middle of the array after sorting .（ Double loop traversal to start with o(╥﹏╥)o）

class Solution {
    public int majorityElement(int[] nums) {
        Arrays.sort(nums);
        return nums[nums.length/2];
    }
}