【tips】java的输入怎么写?

private void InputSomething() throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Input N:");
        int StartNum = Integer.parseInt(br.readLine());
        System.out.print("Input R:");
        int CountNum =  Integer.parseInt(br.readLine());
    }