Here you can find the source of formatDate(String value, Locale locale)
Checks if the field is a valid date.
Parameter | Description |
---|---|
value | The value validation is being performed on. |
locale | The Locale to use to parse the date (system default if null) |
public static Date formatDate(String value, Locale locale)
//package com.java2s; /*/*w w w . j av a 2s . com*/ * Copyright (c) 2000-2004 Netspective Communications LLC. All rights reserved. * * Netspective Communications LLC ("Netspective") permits redistribution, modification and use of this file in source * and binary form ("The Software") under the Netspective Source License ("NSL" or "The License"). The following * conditions are provided as a summary of the NSL but the NSL remains the canonical license and must be accepted * before using The Software. Any use of The Software indicates agreement with the NSL. * * 1. Each copy or derived work of The Software must preserve the copyright notice and this notice unmodified. * * 2. Redistribution of The Software is allowed in object code form only (as Java .class files or a .jar file * containing the .class files) and only as part of an application that uses The Software as part of its primary * functionality. No distribution of the package is allowed as part of a software development kit, other library, * or development tool without written consent of Netspective. Any modified form of The Software is bound by these * same restrictions. * * 3. Redistributions of The Software in any form must include an unmodified copy of The License, normally in a plain * ASCII text file unless otherwise agreed to, in writing, by Netspective. * * 4. The names "Netspective", "Axiom", "Commons", "Junxion", and "Sparx" are trademarks of Netspective and may not be * used to endorse or appear in products derived from The Software without written consent of Netspective. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED REPRESENTATIONS AND * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, * ARE HEREBY DISCLAIMED. * * NETSPECTIVE AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE OR ANY THIRD PARTY AS A * RESULT OF USING OR DISTRIBUTING THE SOFTWARE. IN NO EVENT WILL NETSPECTIVE OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE, EVEN * IF IT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. */ import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class Main { /** * <p>Checks if the field is a valid date. The <code>Locale</code> is * used with <code>java.text.DateFormat</code>. The setLenient method * is set to <code>false</code> for all.</p> * * @param value The value validation is being performed on. * @param locale The Locale to use to parse the date (system default if null) */ public static Date formatDate(String value, Locale locale) { Date date = null; if (value != null) { try { DateFormat formatter = null; if (locale != null) { formatter = DateFormat.getDateInstance(DateFormat.SHORT, locale); } else { formatter = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault()); } formatter.setLenient(false); date = formatter.parse(value); } catch (ParseException e) { } } return date; } /** * <p>Checks if the field is a valid date. The pattern is used with * <code>java.text.SimpleDateFormat</code>. If strict is true, then the * length will be checked so '2/12/1999' will not pass validation with * the format 'MM/dd/yyyy' because the month isn't two digits. * The setLenient method is set to <code>false</code> for all.</p> * * @param value The value validation is being performed on. * @param datePattern The pattern passed to <code>SimpleDateFormat</code>. * @param strict Whether or not to have an exact match of the datePattern. */ public static Date formatDate(String value, String datePattern, boolean strict) { Date date = null; if (value != null && datePattern != null && datePattern.length() > 0) { try { SimpleDateFormat formatter = new SimpleDateFormat(datePattern); formatter.setLenient(false); date = formatter.parse(value); if (strict) { if (datePattern.length() != value.length()) { date = null; } } } catch (ParseException e) { } } return date; } }