from http://www.iteye.com/PRoblems/91538
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cl = Calendar.getInstance(); cl.setTime(sdf.parse("2012-12-31")); int week = cl.get(Calendar.WEEK_OF_YEAR); System.out.println(week); cl.add(Calendar.DAY_OF_MONTH, -7); int year = cl.get(Calendar.YEAR); if(week<cl.get(Calendar.WEEK_OF_YEAR)){ year+=1; } System.out.println(year+"年第"+week+"周");新聞熱點
疑難解答
