题目是简单的, 但是一直有一个点没有通过, 最后我发现我没有考虑如果直接输入"." , 也就是LinkedList容器内没有元素时的情况

这道题目给我的启示是, 写简单的题目, 要万分小心, 把该考虑的情况都要考虑清楚了, 这才能把分数都拿到手.

import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.LinkedList;import java.util.Queue;public class Main {    public static void main(String[] args) throws Exception{        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));        Queue
     
       linkedlist = new LinkedList
      
       ();        while(true) {            String str = br.readLine();            if(str.equals(".")) {                break;            } else if(str.equals("")) {                break;            } else if (str.length() > 10) {                break;            } else {                linkedlist.add(str);            }        }        if (linkedlist.isEmpty()) {            System.out.print("Momo... No one is for you ...");            return;        }        if (linkedlist.size() == 1) {            System.out.print("Momo... No one is for you ...");            return;        } else if (linkedlist.size() >= 2 && linkedlist.size() < 14) {            linkedlist.remove();            String name = linkedlist.poll();            System.out.print(name + " is the only one for you...");            return;        } else {            linkedlist.remove();            String second_name = linkedlist.poll();            for(int i=0; i<11; i++) {                linkedlist.remove();            }            String fifteen_name = linkedlist.poll();            System.out.print(second_name+" and "+fifteen_name+" are inviting you to dinner...");        }    }}