/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
// www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 3 of the License.
//
// This community edition 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/.
//
/////////////////////////////////////////////////////////////////////////////
package org.projectforge.calendar;
/**
* @author Kai Reinhard (k.reinhard@micromata.de)
*/
public class DurationUtils
{
/**
* @param millis
* @return hours:minutes (e. g. 2:30, 12:30, 127:15, ...)
*/
public static String getFormattedHoursAndMinutes(final long millis)
{
final long seconds = millis / 60000;
final int hours = (int) seconds / 60;
final int minutes = (int) seconds % 60;
final StringBuilder buf = new StringBuilder();
buf.append(hours).append(":"); // hours
formatNumber(buf, minutes); // minutes
return buf.toString();
}
private static void formatNumber(final StringBuilder buf, final long number)
{
if (number < 10) {
buf.append("0");
}
buf.append(number);
}
}