如何在Java ME中格式化日期？

Question

所以我有一个Date对象，我想创建一个方法，以便它以以下格式打印Date：

11 September 2011, 9:15pm

我怎么做？到目前为止，我只是对日期执行toString，它为我提供了我不需要的所有GMT信息和秒精度。我必须使用DateFormatter还是有更简单的方法来做到这一点？

编辑该标题后，将Java ME包含在标题中，并在发布了一些与原始问题正确的答案后添加标签。

Answer 1

您可以使用SimpleDateFormatclass设置日期格式。
http://download.oracle.com/javase/1,5.0/docs/api/java/text/SimpleDateFormat.html

我猜模式会是这样的：

SimpleDateFormat format = new SimpleDateFormat("dd MMMM yyyy, h:ma");
format.format(yourDate);

编辑Java ME；我读到Java ME规范中没有SimpleDateFormat类。所以我会尝试日历；

首先将您的日期放入日历，然后获取所需的所有内容。更好的是使它成为一种方法

Calendar calendar = Calendar.getInstance();
Date myDate = new Date(); // as an example, date of "now"
calendar.setTime(myDate);

int day = calendar.get(Calendar.DAY_OF_MONTH);
int monthNumber = calendar.get(Calendar.MONTH);

String[] _months = new DateFormatSymbols().getMonths();
String[] months = new String[12];
for(int i =0; i < 12; i++){
    months[i] = _months[i];
}
//because there is something wrong, we have a 12. month in the name of "" (nothing)

//or if there is no DateFormatSymbols class in your plans
//you may write for yourself;
/*
String[] monthNames = {"January", "February",
            "March", "April", "May", "June", "July",
            "August", "September", "October", "November",
            "December"};
*/
String month = months[monthNumber]; //or String month = monthNames[monthNumber];

int year = calendar.get(Calendar.YEAR);

int hour = calendar.get(Calendar.HOUR);
int minute = calendar.get(Calendar.MINUTE);
String amPm = calendar.get(Calendar.AM_PM)==1 ? "am" : "pm";
System.out.println(day + " " + month + " " + 
    year + ", " + hour + ":" + minute + amPm);