Here you can find the source of beforeDays(Date date, Integer days)
public static boolean beforeDays(Date date, Integer days)
//package com.java2s; /*//w ww . j av a2 s . c o m * Copyright 2006-2008 the original author or authors. * * 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.Date; public class Main { public static boolean beforeDays(Date date, Integer days) { if (date == null || days == null) return false; Long time = System.currentTimeMillis() - date.getTime(); return time < (days * 86400000); // java.util.Calendar ca = java.util.Calendar.getInstance(); // ca.roll(java.util.Calendar.DAY_OF_YEAR, -days); // return date.getTime() >= ca.getTime().getTime(); } }