Converts nanoseconds to seconds - Java java.util

Java examples for java.util:Second

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Description

Converts nanoseconds to seconds

Demo Code

/** //  w  w  w .ja v  a  2s . c  o  m
 * Copyright 2011-2012 Cray Inc. All Rights Reserved
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name Cray Inc. nor the names of its contributors may be
 *   used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **/
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        long nanoseconds = 2;
        System.out.println(toSeconds(nanoseconds));
    }

    public static final double NANOSECONDS_PER_MILLISECONDS = 1000000,
            MILLISECONDS_PER_SECONDS = 1000, SECONDS_PER_HOUR = 3600;

    /**
     * Converts nanoseconds to seconds
     * @param nanoseconds
     */
    public static double toSeconds(long nanoseconds) {
        return toSeconds((double) nanoseconds);
    }

    /**
     * Converts nanoseconds to seconds
     * @param nanoseconds
     */
    public static double toSeconds(double nanoseconds) {
        double ms = nanoseconds / NANOSECONDS_PER_MILLISECONDS;
        return ms / MILLISECONDS_PER_SECONDS;
    }
}

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