Here you can find the source of min(Date datum1, Date datum2)
public static Date min(Date datum1, Date datum2)
//package com.java2s; /*// www .j a v a 2s . c o m * #%L * Webstar Newsletter * %% * Copyright (C) 2013 Webstar Csoport Kft. * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-3.0.html>. * #L% */ import java.util.*; public class Main { public static Date min(Date datum1, Date datum2) { if (datum1 == null) { return datum2; } if (datum2 == null) { return datum1; } return datum2.after(datum1) ? datum1 : datum2; } }