[java] system.in 버퍼리더 표준 입출력

ArrayList<Integer> numberList = new ArrayList<Integer>();

        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

            String input = br.readLine();

            String[] numStrList = input.split(" ");

            for (String numStr : numStrList) {

                numberList.add(Integer.parseInt(numStr));

            }

        } catch (IOException e) {

            e.printStackTrace();

        }

String[] words = null;

       

       try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

           String line = br.readLine();

           words = line.split(" ");

       } catch (IOException e) {

           e.printStackTrace();

       }

int number = 0;

        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

            String line = br.readLine();

            number = Integer.parseInt(line);

        } catch (IOException e) {

            e.printStackTrace();

        }