228.md

#228. Summary Ranges 题目链接

public class Solution {
	public ArrayList<String> summaryRanges(int[] nums) {
    	 ArrayList<String> list = new ArrayList<String>();
    	 int start = 0, end = 0;
    	 if(nums.length != 0)
    		 start = end = nums[0];
    	 int i = 0;
    	 while (i < nums.length) {
    		 start = nums[i];
			 while(++i < nums.length){
				 if(nums[i] - nums[i-1] == 1){
					 end = nums[i];
					 continue;
				 }
				 else {
					end = nums[i - 1];
					break;
				}
			 }
			 if (start != end) {
				String a = start+"->"+end;
				list.add(a);
			} else {
				String a = String.valueOf(start);
				list.add(a);
			}
			 if (i < nums.length) {
				 start = end = nums[i];
			}
		}
        return list;
    }
}