蜗牛—Java基础之学习(三)

最近在学习Date、Calendar及SimpleDateFormat出了一点情况，有点乱。嗯，真的有点乱了

一、Calendar与Date转化

1、

Calendar calendar = Calendar.getInstance();
		Date date = calendar.getTime();
		System.out.println(date);

Date date2 = new Date();
		calendar.setTime(date2);
		System.out.println(calendar.get(Calendar.YEAR));

Date date3 = new Date();
		SimpleDateFormat df = new SimpleDateFormat("yy-MM-dd hh:mm:ss");
		System.out.println(df.format(date3));

Calendar calendar = Calendar.getInstance();
		calendar.set(Calendar.YEAR, 2014);
		calendar.set(Calendar.MONTH, 2);
		calendar.set(Calendar.DAY_OF_MONTH, 11);
		System.out.println(calendar.get(Calendar.WEEK_OF_YEAR));

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
		Calendar calendar = Calendar.getInstance();
		calendar.set(Calendar.YEAR, 2014);
		calendar.set(Calendar.WEEK_OF_YEAR, 11);
		calendar.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
		System.out.println(simpleDateFormat.format(calendar.getTime()));

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
		Date date = null;
		String string = "2014-03-11";
		try {
			date = simpleDateFormat.parse(string);
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(simpleDateFormat.format(date));

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蜗牛—Java基础之学习(三)

原文：http://blog.csdn.net/qq1791422018/article/details/20997907