Here you can find the source of normalizeShortDate(String year, String month, String day)
public static String normalizeShortDate(String year, String month, String day) throws ParseException
//package com.java2s; /**//from w ww.j a v a 2 s . com * Copyright (c) 2012, Minimalgap * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * **/ import java.text.ParseException; public class Main { public static String normalizeShortDate(String year, String month, String day) throws ParseException { for (int i = year.length(); i < 4; i++) { year = "0" + year; } if (month.length() < 2) month = "0" + month; if (day.length() < 2) day = "0" + day; return year + "-" + month + "-" + day; } }