Java：如何在命令行输入数据

String input = "";
         InputStreamReader in = new InputStreamReader(System.in);
         BufferedReader bufferedReader = new BufferedReader(in);
         System.out.print("请输入你的姓名：");
         try {
             input = bufferedReader.readLine();//获得数据
         } catch (IOException e) {
             e.printStackTrace();
             //System.out.println(e.toString());
         }
         System.out.println(input);