java如何从控制台获得一行输入

  /**
  *
  * @param par
  *            入力名
  * @return 入力値
  */
 public static String inputfromConsole(String par) {
  System.out.println(par);
  InputStreamReader in = null;
  BufferedReader br = null;
  in = new InputStreamReader(System.in);
  br = new BufferedReader(in);
  String str = "";
  try {
   str = br.readLine();
  } catch (IOException e) {
  }
  return str;
 }
测试函数
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  System.out.println(Base.inputfromConsole("please input data"));
 }
测试结果
please input data
123456
123456