Java Duration Format durationToString(final long msec)

Description

duration To String

License

Open Source License

Declaration

public static String durationToString(final long msec) 

Method Source Code

//package com.java2s;
/*/*from  ww  w  . j a  v a  2 s .com*/
 * Copyright 2007 Joachim Sauer
 * Copyright 2002-2006 Chriss Veness (vincenty formula in distance())
 * 
 * This file is part of bbTracker.
 * 
 * bbTracker is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * bbTracker is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    public static String durationToString(final long msec) {
        // i do hope no one uses bbTracker do record tracks that
        // are longer than Integer.MAX_VALUE seconds.
        final StringBuffer sb = new StringBuffer(8);
        int sec = (int) (msec / 1000);
        if (sec > 60 * 60) {
            final int hours = sec / (60 * 60);
            sb.append(hours);
            sec -= hours * (60 * 60);
            sb.append(':');
        }

        final int minutes = sec / 60;
        if (sb.length() > 0) {
            appendTwoDigits(sb, minutes, '0');
        } else {
            sb.append(minutes);
        }
        sb.append(':');
        sec -= minutes * 60;

        appendTwoDigits(sb, sec, '0');

        return sb.toString();
    }

    private static StringBuffer appendTwoDigits(final StringBuffer buf, final int value, final char c) {
        if (value < 10) {
            buf.append(c);
        }
        buf.append(value);
        return buf;
    }
}

Related

1. duration(int len)
2. durationAsString(long duration)
3. durationString(long duration)
4. durationToFormattedString(final Duration duration)
5. durationToSec(int millis)
6. durationToString(int millis)
7. durationToString(long durationInMilliSeconds)
8. durationToString(long durationInMillisLong)
9. durationToString(long durationMs)