Calendar.getInstance() returns 1-2-5（日-月-年）

Question

我有这段代码：

Calendar date1 = Calendar.getInstance();      
DateTime dateTime1 = new DateTime(date1.YEAR, date1.MONTH, date1.DAY_OF_MONTH, date1.HOUR_OF_DAY, date1.MINUTE, date1.SECOND);

我的问题是 date1 returns 日期 01/02/0005（1/2/5 格式）。我阅读了有关 SimpleDateFormat 的信息，但是它 returns 具有相同的值。

Answer 1

尝试这些代码行以获得正确的日期：-

Calendar ci = Calendar.getInstance();
     String AM_PM;

      if(ci.get(Calendar.AM_PM)==0)
        {
             AM_PM ="AM";
        }
        else
        {
             AM_PM ="PM";
        }
        String CiDateTime = "" + ci.get(Calendar.YEAR) + "-" + 
            (ci.get(Calendar.MONTH) + 1) + "-" +
            ci.get(Calendar.DAY_OF_MONTH)+" "+AM_PM;

         System.out.println("time=========================================="+CiDateTime);

对于您的解决方案，请尝试这些

  Calendar ci = Calendar.getInstance();
  DateTime dateTime1 = new DateTime(ci.get(Calendar.YEAR), ci.get(Calendar.MONTH), ci.get(Calendar.DAY_OF_MONTH), ci.get(Calendar.HOUR_OF_DAY), ci.get(Calendar.MINUTE), ci.get(Calendar.SECOND);

Answer 2

试试下面的代码：

Calendar date1 = Calendar.getInstance();   
Date date = new Date(); 
date1.setTime(date);   
DateTime dateTime1 = new DateTime(date1.YEAR, date1.MONTH, date1.DAY_OF_MONTH, date1.HOUR_OF_DAY, date1.MINUTE, date1.SECOND);

Answer 3

date1.YEAR returns 只是一个常量值。与 Calendar.YEAR.

相同的值

相反，您需要结合使用 date1.get(...) 方法和 Calendar.YEAR。看这个例子：

  Calendar date1 = Calendar.getInstance();      
  DateTime dateTime1 = new DateTime(date1.get(Calendar.YEAR), date1.get(Calendar.MONTH), date1.get(Calendar.DAY_OF_MONTH), date1.get(Calendar.HOUR_OF_DAY), date1.get(Calendar.MINUTE), date1.get(Calendar.SECOND);

Calendar.getInstance() returns 1-2-5（日-月-年）

Calendar.getInstance() returns 1-2-5(Day-Month-Year)

android

calendar

android-calendar