get Gregorian Day - Java java.util

Java examples for java.util:Day

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Description

get Gregorian Day

Demo Code

/**/* w  ww  .j a va 2 s  .  c  o m*/
 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
 *
 * 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
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * SOFTWARE.
 */
//package com.java2s;

import java.util.Calendar;

public class Main {
    public static void main(String[] argv) throws Exception {
        Calendar cal = Calendar.getInstance();
        System.out.println(getGregorianDay(cal));
    }

    public static int getGregorianDay(Calendar cal) {
        int year = cal.get(Calendar.YEAR) - 1600;

        int month = cal.get(Calendar.MONTH) + 1;

        if (month < 3) {
            month += 12;
        }

        int day = cal.get(Calendar.DATE);

        int gregorianDay = (int) (6286 + (year * 365.25) - (year / 100)
                + (year / 400) + (30.6 * month) + 0.2 + day);

        return gregorianDay;
    }
}

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