JAVA判断一个日期早于今天

 public static void main(String[] args) throws Exception {
   
    java.util.Date nowdate=new java.util.Date();
    String myString = "20012/09/02";
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd", Locale.CHINA);
    Date d = sdf.parse(myString);

    boolean flag = d.before(nowdate);
    if(flag){
     System.out.print("早于今天") ;
    }else{
     System.out.print("晚于今天") ;
    }
   
   
   }