Java Date Format Check checkDateByMask(String sDateValue, String sDateFormat)

Description

check the date by pattern

License

Apache License

Parameter

Parameter	Description
sDateValue	a parameter
sDateFormat	a parameter

Exception

Parameter	Description
ParseException	an exception

Return

boolean,if check the date ok,then return true

Declaration

public static boolean checkDateByMask(String sDateValue, String sDateFormat) throws ParseException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;

public class Main {
    /**//from ww w .  j  a v  a  2  s.co m
     * check the date by pattern
     * 
     * @param sDateValue
     * @param sDateFormat
     * @return boolean,if check the date ok,then return true
     * @throws ParseException
     */
    public static boolean checkDateByMask(String sDateValue, String sDateFormat) throws ParseException {
        boolean isTrue = false;
        if (sDateValue == null || sDateFormat == null || sDateValue.equals(""))
            return false;
        if (sDateValue.length() != sDateFormat.length())
            return false;
        java.util.Date date = stringToDate(sDateValue, sDateFormat);
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        if (sDateFormat.indexOf("yyyy") > -1) {
            isTrue = (cal.get(Calendar.YEAR) == Integer
                    .parseInt(sDateValue.substring(sDateFormat.indexOf("yyyy"), sDateFormat.indexOf("yyyy") + 4))
                    && cal.get(Calendar.MONTH) == (Integer.parseInt(
                            sDateValue.substring(sDateFormat.indexOf("MM"), sDateFormat.indexOf("MM") + 2)) - 1)
                    && cal.get(Calendar.DATE) == Integer.parseInt(
                            sDateValue.substring(sDateFormat.indexOf("dd"), sDateFormat.indexOf("dd") + 2)));
        } else {
            isTrue = (cal.get(Calendar.YEAR) == Integer
                    .parseInt(sDateValue.substring(sDateFormat.indexOf("yy"), sDateFormat.indexOf("yy") + 2))
                    && cal.get(Calendar.MONTH) == (Integer.parseInt(
                            sDateValue.substring(sDateFormat.indexOf("MM"), sDateFormat.indexOf("MM") + 2)) - 1)
                    && cal.get(Calendar.DATE) == Integer.parseInt(
                            sDateValue.substring(sDateFormat.indexOf("dd"), sDateFormat.indexOf("dd") + 2)));
        }
        return isTrue;
    }

    /**
     * Convert string to Date
     * 
     * @return a java.util.Date object converted.
     */
    public static java.util.Date stringToDate(String pstrValue, String pstrDateFormat) {
        if ((pstrValue == null) || (pstrValue.equals(""))) {
            return null;
        }
        java.util.Date dttDate = null;
        try {
            SimpleDateFormat oFormatter = new SimpleDateFormat(pstrDateFormat);
            dttDate = oFormatter.parse(pstrValue);
            oFormatter = null;
        } catch (Exception e) {
            return null;
        }

        return dttDate;
    }
}

Related

1. checkDate(Date date)
2. checkDate(String begingDate, String endDate)
3. checkDate(String deadline)
4. checkDateBetween(String time)
5. checkDateFormat()
6. checkDateFormat()
7. checkDateFormat(String pattern)
8. checkDateFormat(String strTime, String pattern)