Here you can find the source of lastDayOfWeek(String year, int week, String format)
public static String lastDayOfWeek(String year, int week, String format)
//package com.java2s; /**/*from ww w .j a v a 2s . co m*/ * Copyright 2014 tgrape Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Locale; public class Main { public static String lastDayOfWeek(String year, int week, String format) { SimpleDateFormat dayFormat = new SimpleDateFormat(format, Locale.UK); Calendar calendar = Calendar.getInstance(Locale.UK); calendar.setFirstDayOfWeek(Calendar.MONDAY); calendar.setMinimalDaysInFirstWeek(4); calendar.set(Calendar.WEEK_OF_YEAR, week); calendar.set(Calendar.YEAR, Integer.parseInt(year)); calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY); Date date = calendar.getTime(); String end_day = dayFormat.format(date); return end_day; } }