两数之和 II - 输入有序数组

class Solution {
    public int[] twoSum(int[] numbers, int target) {
        int[] arr=new int[2];
        //权限校验
        if(numbers==null||numbers.length==0){
            return arr;
        }
        int start=0;
        int end=numbers.length-1;
        while(start<end){
            if(numbers[start]+numbers[end]<target){
                start++;
            }else if(numbers[start]+numbers[end]>target){
                end--;
            }else{
                arr[0]=start+1;
                arr[1]=end+1;
                break;
            }
        }
        return arr;
    }
}