java代码如何获取yyyy-MM-dd对应星期几呢?

实现思路:
    1.定义一个SimpleDateFormat("EEEE")对象
	2.使用其对象的format方法,即可获取一个Date对应的日期信息

public static String strToDate(String strDate) throws ParseException {
	SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
	Calendar c = Calendar.getInstance();
	c.setTime(formatter.parse(strDate));
	SimpleDateFormat sdf = new SimpleDateFormat("EEEE");
	String week = sdf.format(c.getTime());
	return week;
}