Here you can find the source of format(Date time, String fmt)
public static String format(Date time, String fmt)
//package com.java2s; /**/*from w w w . ja v a 2 s. c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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.SimpleDateFormat; import java.util.Date; public class Main { public static String format(int curTimeSec) { return format(new Date(curTimeSec * 1000L), "yyyy-MM-dd HH:mm:ss"); } public static String format(Date time, String fmt) { SimpleDateFormat df = new SimpleDateFormat(fmt); return df.format(time); } }