Here you can find the source of toString(Timestamp t, String precision)
public static String toString(Timestamp t, String precision)
//package com.java2s; /************************************************************************ * This file is part of jsnap. * * * * jsnap 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, either version 3 of the License, or * * (at your option) any later version. * * * * jsnap 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 jsnap. If not, see <http://www.gnu.org/licenses/>. * ************************************************************************/ import java.sql.Timestamp; import java.text.SimpleDateFormat; import java.util.Date; public class Main { private static final String TIMESTAMP_FORMAT = "dd/MM/yyyy HH:mm:ss"; private static final String MINUTE_FORMAT = "dd/MM/yyyy HH:mm"; private static final String HOUR_FORMAT = "dd/MM/yyyy HH"; private static final String DAY_FORMAT = "dd/MM/yyyy"; private static final String MONTH_FORMAT = "MM/yyyy"; private static final String YEAR_FORMAT = "yyyy"; public static String toString(Timestamp t, String precision) { if (t == null) return null; SimpleDateFormat sdf;/*from w w w .j a v a2 s . c o m*/ if (precision.equals("minute")) sdf = new SimpleDateFormat(MINUTE_FORMAT); else if (precision.equals("hour")) sdf = new SimpleDateFormat(HOUR_FORMAT); else if (precision.equals("day")) sdf = new SimpleDateFormat(DAY_FORMAT); else if (precision.equals("month")) sdf = new SimpleDateFormat(MONTH_FORMAT); else if (precision.equals("year")) sdf = new SimpleDateFormat(YEAR_FORMAT); else sdf = new SimpleDateFormat(TIMESTAMP_FORMAT); return sdf.format(new Date(t.getTime())); } public static String toString(long millis) { SimpleDateFormat sdf = new SimpleDateFormat(TIMESTAMP_FORMAT); return sdf.format(new Date(millis)); } }