Java Day getDay(Date date)

Description

get Day

License

Apache License

Declaration

public static int getDay(Date date) 

Method Source Code

//package com.java2s;
/*// w  ww  . j  a  v  a 2  s .c o m
 * Copyright 2015-2016 RonCoo(http://www.roncoo.com) Group.
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.text.DateFormat;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class Main {
    public static DateFormat dateFormat = null;
    public static Calendar calendar = null;

    public static int getDay(Date date) {
        calendar = Calendar.getInstance();
        calendar.setTime(date);
        return calendar.get(Calendar.DAY_OF_MONTH);
    }

    public static int getDay(String beginDate, String endDate) throws ParseException {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        long to = df.parse(endDate).getTime();
        long from = df.parse(beginDate).getTime();
        return (int) ((to - from) / (1000 * 60 * 60 * 24));
    }

    public static String getTime(Date date) {
        return format(date, "HH:mm:ss");
    }

    public static String format(Date date, String format) {
        String result = "";
        try {
            if (date != null) {
                dateFormat = new SimpleDateFormat(format);
                result = dateFormat.format(date);
            }
        } catch (Exception e) {
        }
        return result;
    }

    public static String format(Date date) {
        return format(date, "yyyy-MM-dd");
    }
}

Related

1. dayToMilliSeconds(String day, String timeZone)
2. dayToUTCSeconds(String day)
3. getDateYYMMDD()
4. getDateYYMMDD(java.util.Date date)
5. getDay(Date date)
6. getDay(Date date)
7. getDay(Date date)
8. getDay(Date date, HashMap date2day)
9. getDay(java.util.Date date)