Java SQL Time Field getHoursAndMinutes(String dateTime)

Description

Gets hours and minutes from complete time value.

License

Apache License

Parameter

Parameter	Description
dateTime	a parameter

Return

Retrieved hours:minutes.

Declaration

public static String getHoursAndMinutes(String dateTime) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * This file is part of the EEG-database project
 * //w w  w  . ja  v a  2 s.co  m
 *   ==========================================
 *  
 *   Copyright (C) 2013 by University of West Bohemia (http://www.zcu.cz/en/)
 *  
 *  ***********************************************************************************************************************
 *  
 *   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.
 *  
 *  ***********************************************************************************************************************
 *  
 *   BookingRoomUtils.java, 2013/10/02 00:01 Jakub Rinkes
 ******************************************************************************/

import java.sql.Timestamp;

import java.text.SimpleDateFormat;
import java.util.*;

public class Main {
    /**
     * Format of time string.
     */
    public static final String timeFormat = "HH:mm:ss";

    /**
     * Gets hours and minutes from complete time value.
     *
     * @param dateTime
     * @return Retrieved hours:minutes.
     */
    public static String getHoursAndMinutes(String dateTime) {
        String tmp = dateTime.split(" ")[1];
        return tmp.substring(0, tmp.lastIndexOf(":"));
    }

    /**
     * Gets hours and minutes from java.sql.Timestamp.
     *
     * @param timestamp Input Timestamp.
     * @return Retrieved hours:minutes.
     */
    public static String getHoursAndMinutes(Timestamp timestamp) {
        GregorianCalendar cal = new GregorianCalendar();
        cal.setTime(timestamp);
        return getHoursAndMinutes(cal);
    }

    /**
     * Gets hours and minutes from GregorianCalendar.
     *
     * @param cal Input GregorianCalendar.
     * @return Retrieved hours:minutes.
     */
    public static String getHoursAndMinutes(GregorianCalendar cal) {
        String tmp = getTime(cal);
        return getTime(cal).substring(0, tmp.lastIndexOf(":"));
    }

    /**
     * Gets time in hh:mm:ss format from java.sql.Timestamp.
     *
     * @param timestamp Input Timestamp.
     * @return Retrieved time.
     * @see #timeFormat
     */
    public static String getTime(Timestamp timestamp) {
        GregorianCalendar cal = new GregorianCalendar();
        cal.setTime(timestamp);
        return getTime(cal);
    }

    /**
     * Gets time in hh:mm:ss format from GregorianCalendar.
     *
     * @param cal Input GregorianCalendar.
     * @return Retrieved time.
     * @see #timeFormat
     */
    public static String getTime(GregorianCalendar cal) {
        SimpleDateFormat sdf = new SimpleDateFormat(timeFormat);
        Date date = cal.getTime();
        return sdf.format(date);
    }
}

Related

1. clearTimeFields(java.sql.Date date)
2. clearTimeFields(java.util.Date date)
3. getDay(long time)
4. getHoraFormatada(Time hora, String formato)
5. getHour(String time)
6. getSecond(Time time)