java 获取当前周的周一和周日的日期

SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");//设置日期格式
Calendar cld = Calendar.getInstance(Locale.CHINA);
cld.setFirstDayOfWeek(Calendar.MONDAY);//以周一为首日
cld.setTimeInMillis(System.currentTimeMillis());//当前时间

cld.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);//周一
System.out.println(df.format(cld.getTime()));

cld.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);//周日
System.out.println(df.format(cld.getTime()));