package test; import java.text.SimpleDateFormat; import java.util.Calendar; /** * ClassName: LastDayOfWeek * @Description: TODO * @author Owen * @date 2015年12月22日 */ public class LastDayOfWeek { /** * 获取某年某周的最后一天 * @Title:getLastDayOfWeek * @Description: * @param:@param year * @param:@param week * @param:@return * @return:String * @throws */ public static String getLastDayOfWeek(int year,int week) { Calendar cal = Calendar.getInstance(); //设置年份 cal.set(Calendar.YEAR,year); //设置周 cal.set(Calendar.WEEK_OF_YEAR, week); //设置该周第一天为星期一 cal.setFirstDayOfWeek(Calendar.MONDAY); //设置最后一天是星期日 cal.set(Calendar.DAY_OF_WEEK, cal.getFirstDayOfWeek() + 6); // Sunday //格式化日期 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String lastDayOfWeek = sdf.format(cal.getTime()); return lastDayOfWeek; } /** * @Title:main * @Description: * @param:@param args * @return: void * @throws */ public static void main(String[] args) { String lastDay = getLastDayOfWeek(2015,22); System.out.println("2014年第22周的最后一天是:" + lastDay); } }