Here you can find the source of getHttpDate()
public static String getHttpDate()
//package com.java2s; /*//from w w w. j a va 2 s .co m * Copyright (c) 2006, Pierre Carion. * * 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.Date; import java.util.Locale; public class Main { private static final SimpleDateFormat httpDateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US); public static String getHttpDate() { return getHttpDate(new Date()); } public static String getHttpDate(Date date) { return httpDateFormat.format(date); } }