SimpleDateFormat引发异常

Question

I want to show a date string in this format: Jun 27, 2012 . I did this:

SimpleDateFormat sdf = new SimpleDateFormat("MMM dd, yyy");
String date = sdf.format(Calendar.getInstance());

But it gives me this:

java.lang.IllegalArgumentException: Cannot format given Object as a Date

What am I doing wrong?

Answer 1

sdf.format()

采用Date而不是Calendar对象。

Answer 2

You can not use Calendar.getInstance() , since the param for same is date and not calender instance. Just change the param to getTime()

SimpleDateFormat sdf = new SimpleDateFormat("MMM dd, yyyy");
String date = sdf.format(Calendar.getInstance().getTime());