Calculates the elapsed time from the future to now. - Java java.util

Java examples for java.util:Calendar Calculation

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Description

Calculates the elapsed time from the future to now.

Demo Code

/**//from   w  ww.  ja va 2s.co  m
 * The MIT License
 *
 * Copyright (C) 2007 Asterios Raptis
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
//package com.java2s;

import java.util.Date;

public class Main {
    public static void main(String[] argv) throws Exception {
        Date now = new Date();
        Date future = new Date();
        System.out.println(calculateTimeFromNow(now, future));
    }

    /**
     * Calculates the elapsed time from the future to now.
     *
     * @param now
     *            The Date from now.
     * @param future
     *            The Date in the future.
     * @return The elapsed time in long.
     */
    public static long calculateTimeFromNow(final Date now,
            final Date future) {
        final long elapsedTime = future.getTime() - now.getTime();
        return elapsedTime;
    }
}

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