Java Utililty Methods Day

List of utility methods to do Day

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Description

The list of methods to do Day are organized into topic(s).

Method

StringgetDayEndTime(int off, String timezone)
get Day End Time 
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(new Date().getTime());
calendar.add(5, off);
SimpleDateFormat dateFormatGmt = new SimpleDateFormat("yyyy-MM-dd 23:59:59");
dateFormatGmt.setTimeZone(TimeZone.getTimeZone(timezone));
return dateFormatGmt.format(calendar.getTime());
intgetDayForDate(String dateToCheck, String pattern)
Parses a string into a date. 
if (isDateValid(dateToCheck, pattern) && dateToCheck.length() == pattern.length()) {
    int index = pattern.indexOf("dd"); 
    if (index == -1) {
        return (-1);
    String day_str = dateToCheck.substring(index, index + 2);
    int day = -1;
    try {
...
StringgetDayFormat(Date date)
get Day Format 
return dayFormater.format(date);
String[]getDayInWeekBeginAndEnd(Date date)
get Day In Week Begin And End 
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.setTime(date);
int week = cal.get(java.util.Calendar.DAY_OF_WEEK) - 1;
String begin, end;
if (week == 0) {
    begin = addDate(date, -6);
    end = format(date);
} else {
...
ListgetDayInWeekForMonthIn2Characters(int year, int month)
get Day In Week For Month In Characters 
SimpleDateFormat df = new SimpleDateFormat("EE");
List<String> list = new ArrayList<String>();
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DATE, 1);
while (cal.get(Calendar.MONTH) == month) {
    list.add(df.format(cal.getTime()));
...
StringgetDayName(String dateString)
get Day Name 
String returnString;
java.util.Date date = getDate(dateString);
SimpleDateFormat sdf = new SimpleDateFormat("dd");
returnString = sdf.format(date);
return returnString;
StringgetDayNameForDate(java.util.Date dt, boolean fullname)
Gets the name of a day based on a date and current locale. 
final String fullFormat = "EEEE";
final String smallFormat = "EEE";
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(fullname ? fullFormat : smallFormat);
String dayName = simpleDateFormat.format(dt);
return (dayName);
ListgetDayNames(Locale locale)
Returns a List of day name Strings - suitable for calendar headings. 
Calendar tempCal = Calendar.getInstance(locale);
tempCal.set(Calendar.DAY_OF_WEEK, tempCal.getFirstDayOfWeek());
SimpleDateFormat dateFormat = new SimpleDateFormat("EEEE", locale);
List<String> resultList = new ArrayList<String>();
for (int i = 0; i < 7; i++) {
    resultList.add(dateFormat.format(tempCal.getTime()));
    tempCal.roll(Calendar.DAY_OF_WEEK, 1);
return resultList;
StringgetDayNumber()
Get the number of the current day 
Date date = new Date();
SimpleDateFormat format = new SimpleDateFormat("dd");
String output = format.format(date);
return output;
IntegergetDayOfDate(Date date)
get Day Of Date 
return Integer.valueOf(yyyyMMddFormat.format(date));