扑克牌 顺子

import java.util.Arrays;
public class Solution {
    public boolean isContinuous(int [] numbers) {
        int index = -1;
        Arrays.sort(numbers);
        int zero = 0;
        int diff = 0;
        if(numbers.length==0)return false;
        for(int i=numbers.length-1;i>=0;i--){
            if(numbers[i]==0){
                zero = i+1;
                break;
            }
            if(i-1>=0&&numbers[i]==numbers[i-1]){
                return false;
            }
            if(i-1>=0&&numbers[i-1]!=0){
                  diff += (numbers[i] - numbers[i-1] - 1);
            }
        }
        if(zero>=diff) return true;
        return false;
    }
}