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返回日期01/02/0005（以1/2/5格式）。我读到了SimpleDateFormat，但它返回的值相同。

Answer 1

尝试使用以下代码行来获取正确的日期： -

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

date1.YEAR仅返回常量值。与Calendar.YEAR相同的值。

相反，您需要将date1.get(...)方法与Calendar.YEAR结合使用。见这个例子：

  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);

Answer 3

尝试以下代码：

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);

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

3 个答案: