Here you can find the source of compareDate(String timeStamp1, String timeStamp2)
public static int compareDate(String timeStamp1, String timeStamp2)
//package com.java2s; /******************************************************************************* * Copyright (c) 2006-2012//from w w w . ja v a2s. c o m * Software Technology Group, Dresden University of Technology * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026 * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Software Technology Group - TU Dresden, Germany; * DevBoost GmbH - Berlin, Germany * - initial API and implementation ******************************************************************************/ import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Main { private static final String DATE_FORMAT_NOW = "yyyy-MM-dd HH:mm:ss,SSS"; public static int compareDate(String timeStamp1, String timeStamp2) { SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW); try { Date d1 = sdf.parse(timeStamp1); Date d2 = sdf.parse(timeStamp2); if (d1.compareTo(d2) == 0) { return -1; } return d1.compareTo(d2); } catch (ParseException e) { } return 0; } }