如何使用键盘上的“enter”命令作为分隔符？

Question

我正在写一些代码来从键盘上读取日期。我以字符串形式读取它，然后使用我允许的所有分隔符的字符串将其拆分为标记，但是当用户点击输入按钮时我也想转到下一个标记。有没有办法将它用作分隔符？

这是我的方法：

public static String getEnrollDate() {
    Scanner stdin = new Scanner(System.in);
    int month;
    String strM;
    int day;
    String strD;
    int year;
    String strY;
    String enrollDate;
    String delims = "[/ \n\r]+";
    String[] tokens;
    int count = 0;

    do {
       System.out.print("Please enter the enrollment date as MM/DD/YYYY, else enter 'none': ");
       enrollDate = stdin.nextLine();
       if (!(enrollDate.equalsIgnoreCase("none"))) {
          count = 0;
          tokens = enrollDate.split(delims);
          month = Integer.parseInt(tokens[0]);
          strM = tokens[0];
          day = Integer.parseInt(tokens[1]);
          strD = tokens[1];
          year = Integer.parseInt(tokens[2]);
          strY = tokens[2];
             if (strM.length() > 2 || strD.length() > 2 || strY.length() != 4) {
                System.out.println("Sorry, please enter the date in the specified format.");
                count = 1;
             }
        } 
     } while (count == 1);

    return enrollDate;
}