Here you can find the source of getDayOfWeek(long timeMillis)
public static int getDayOfWeek(long timeMillis)
//package com.java2s; /*//from www .ja va 2 s . com * Copyright 2014 http://Bither.net * * 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.util.Calendar; public class Main { public static int getDayOfWeek(long timeMillis) { Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(timeMillis); return calendar.get(Calendar.DAY_OF_WEEK); } }