Here you can find the source of convertDate(String dateIn, String fromDateFormat, String toDateFormat)
public static String convertDate(String dateIn, String fromDateFormat, String toDateFormat)
//package com.java2s; /*/*from w w w .j a va 2 s . co m*/ * 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 * * 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. */ import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static String convertDate(String dateIn, String fromDateFormat, String toDateFormat) { String dateOut; try { SimpleDateFormat formatIn = new SimpleDateFormat(fromDateFormat); SimpleDateFormat formatOut = new SimpleDateFormat(toDateFormat); Date data = formatIn.parse(dateIn, new ParsePosition(0)); dateOut = formatOut.format(data); } catch (Exception e) { dateOut = null; } return dateOut; } }