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java runtime error的话,语言的要注入输入的问题,提供一个网友写的输入类

Posted by frady at 2020-06-29 09:18:57 on Problem 1696
一直runtime,StringTokenizer和Scanner都试过了,还是不行
用这个替换之后,AC了
static class sc{
        static BufferedReader reader;
        static StringTokenizer tokenizer;
        static void init(InputStream input){
            reader=new BufferedReader(new InputStreamReader(input));
            tokenizer=new StringTokenizer("");
        }
        static String next() throws IOException{
            while(!tokenizer.hasMoreTokens()){
                tokenizer=new StringTokenizer(reader.readLine());
            }
            return tokenizer.nextToken();
        }
        static int nextInt() throws IOException{
            return Integer.parseInt(next());
        }

    }

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