SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
1.Calendar 转化 String
//获取当前时间的具体情况,如年,月,日,week,date,分,秒等 Calendar calendat = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String dateStr = sdf.format(calendar.getTime());
2.String 转化Calendar
String str="2010-5-27";
SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
Date date =sdf.parse(str);
Calendar calendar = Calendar.getInstance();......
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