> 可以自己写个关于BufferedReader的nextInt
> 我一般都这么干
> leave=0;
> BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
> int nextInt() throws Exception
> 	{
> 		while (leave==0)
> 		{
> 			st=new StringTokenizer(in.readLine());
> 			leave=st.countTokens();
> 		}
> 		leave--;
> 		return Integer.parseInt(st.nextToken());
> 	}