Android / java時間格式？

Question

我有時間作為“ 2011-12-03 12:00:19”如何在“ 2011年12月2日星期五”中進行轉換，我知道此http://docs.oracle.com/javase/6/docs/api/ java / text / SimpleDateFormat.html ，但是給我錯誤：

 Exception in thread "main" java.lang.IllegalArgumentException: Cannot format given Object as a Date
    at java.text.DateFormat.format(Unknown Source)
    at java.text.Format.format(Unknown Source)
    at com.timestamp.NewTimeStamp.<init>(NewTimeStamp.java:21)
    at com.timestamp.NewTimeStamp.main(NewTimeStamp.java:35)

我的代碼是::

String mytime ="2011-12-03 12:00:19";
String pattern = "EEE d MMMMM yyyy";
SimpleDateFormat dateFormat = new SimpleDateFormat(pattern);

        Date date = new Date(mytime);
        String time = dateFormat.format(date);

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

Answer 1

將您的輸入轉換為Date ，然后格式化。

        String mytime ="2011-12-03 12:00:19";
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-dd-MM HH:mm:ss");
        Date myDate = dateFormat.parse(mytime);
        System.out.println("=== > " + myDate);
        SimpleDateFormat timeFormat = new SimpleDateFormat("EEE d MMMMM yyyy");
        String time = timeFormat.format(myDate);
        System.out.println("=== > " + time);

輸出：

D:\Work\Stand alone Java classes>javac Test2.java && java Test2
=== > Wed Jan 12 12:00:19 IST 2011
=== > Wed 12 January 2011