只需使用SimpleDateFormat类。如下所示：

 日期d = Calendar.getInstance（）。getTime（）; //当前时间
 SimpleDateFormat sdf = new SimpleDateFormat（yyyy-MM-dd HH：mm）; //设置日期格式
 String currentData = sdf.format（d）; //根据日期格式获取日期字符串
 

在此可以看到详细信息和所有支持的格式： p>

http：//开发人员。 android.com/reference/java/text/SimpleDateFormat.html

I have multiple contacts with birth dates and all are synced with the mobile device. Now the problem is all contacts have different birthday formats and I want to display all of the birthday dates in a specific format like "dd-MM-yyyy".

So for example, one synchronized contact has birthday like "1990-02-07" or "1988-06-15T22:00:00.000Z" or "12-02-1990" etc... Then all of these dates should be displayed in a specific format "dd-MM-yyyy".

So how can I resolve this issue?

Any suggestion will be appreciated.

Simply using SimpleDateFormat class. Something like:

Date d = Calendar.getInstance().getTime(); // Current time
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm"); // Set your date format
String currentData = sdf.format(d); // Get Date String according to date format

Here you can see details and all supported format:

http://developer.android.com/reference/java/text/SimpleDateFormat.html