题解 | #数组中出现次数超过一半的数字#

import java.util.*;


public class Solution {
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     * 
     * @param numbers int整型一维数组 
     * @return int整型
     */
    public int MoreThanHalfNum_Solution (int[] numbers) {
        // write code here
        if(numbers == null || numbers.length == 0) {
            return 0;
        }
        Arrays.sort(numbers);
        int len = numbers.length;
        int midNum = numbers[len/2];
        int time = 0;
        for(int i = 0; i < len; i++) {
            if(numbers[i] == midNum) {
                time++;
            }
        }
        if(time > len/2) {
            return midNum;
        }
        return 0;
    }
}