数组中出现次数超过一半的数字

public class MoreThanHalf{
    public int getMoreThanHalf(int[] array){
        if(array==null || array.length==0) return -1;
        int result = array[0];
        int count = 0;
        for(int i=0;i<array.length;i++){
            if(count ==0){
                result = array[i];
                count = 1;
            }else if(result == array[i]){
                count++;
            }else{
                count--;
            }
        }
        count = 0;
        for(int i=0;i<array.length;i++){
            if(result == array[i]){
                count++;
            }
        }
        if(count > (array.length/2)){
            return result;
        }
        return -1;
    }
    public static void main(String[] args){
        int[] array = {1,2,3,2,2,2,5,4,2};
        MoreThanHalf m = new MoreThanHalf();
        int result = m.getMoreThanHalf(array);
        System.out.println(result);
    }
}