Java method to determine whether it is a legal date

Java method to determine whether a legal date is: (Recommended: java video tutorial)

 public static boolean isValidDate(String str) {
       boolean convertSuccess=true;
　　　　　// 指定日期格式为四位年/两位月份/两位日期，注意yyyy/MM/dd区分大小写；
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm");
        try {
 　　　　　// 设置lenient为false. 否则SimpleDateFormat会比较宽松地验证日期，比如2007/02/29会被接受，并转换成2007/03/01
           format.setLenient(false);
           format.parse(str);
        } catch (ParseException e) {
           // e.printStackTrace();
          // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对
            convertSuccess=false;
        } 
        return convertSuccess;
 }

java.text.SimpleDateFormat (direct child of DateFormat Class)

SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-dependent manner. It allows formatting (date -> text), parsing (text -> date) and normalization.

SimpleDateFormat enables the selection of any user-defined date-time format pattern. However, it is still recommended to create a new date-time formatter via getTimeInstance, getDateInstance or getDateTimeInstance in DateFormat.

format.setLenient(false) Strictly control date conversion, unconventional formats become illegal

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