基本日期輸出

使用格式字串 yyyy/MM/dd hh:mm.ss 的以下程式碼，我們將收到以下輸出

2016/04/19 11：45.36

// define the format to use
String formatString = "yyyy/MM/dd hh:mm.ss";

// get a current date object
Date date = Calendar.getInstance().getTime();

// create the formatter
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(formatString);

// format the date
String formattedDate = simpleDateFormat.format(date);

// print it
System.out.println(formattedDate);

// single-line version of all above code
System.out.println(new SimpleDateFormat("yyyy/MM/dd hh:mm.ss").format(Calendar.getInstance().getTime()));