Java Utililty Methods Date Convert

List of utility methods to do Date Convert

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Description

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

Method

longdateToLong(final Date date)
date To Long 
final Calendar cal = Calendar.getInstance();
cal.setTime(date);
return cal.getTimeInMillis();
StringDateToMask(Date javaDateType)
Date To Mask 
Calendar dt = Calendar.getInstance();
dt.setTime(javaDateType);
String dia = String.valueOf(dt.get(Calendar.DAY_OF_MONTH));
String mes = String.valueOf(dt.get(Calendar.MONTH) + 1);
String ano = String.valueOf(dt.get(Calendar.YEAR));
while (dia.length() < 2) {
    dia = "0".concat(dia);
while (mes.length() < 2) {
    mes = "0".concat(mes);
while (ano.length() < 4) {
    ano = "0".concat(ano);
return dia.concat("/").concat(mes).concat("/").concat(ano);
DatedateToMorining(Date date)
date To Morining 
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
return calendar.getTime();
LongdateToNumber(Date date)
date To Number 
if (date == null) {
    return null;
Calendar c = Calendar.getInstance();
c.setTime(date);
String month;
String day;
if ((c.get(Calendar.MONTH) + 1) >= 10) {
...
longdateToQTime(final Date date)
Converts a Date object to a 32-bit value that be used in the file format. 
final Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
if (c.getTimeZone().inDaylightTime(c.getTime())) {
    c.add(Calendar.HOUR_OF_DAY, 1);
final long seconds = c.getTimeInMillis() / 1000;
long result;
...
StringdateToRRNDate(Date date)
date To RRN Date 
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
StringBuilder builder = new StringBuilder();
builder.append(calendar.get(Calendar.DAY_OF_MONTH));
builder.append(' ');
builder.append(RRNMonthNames[calendar.get(Calendar.MONTH)]);
builder.append(' ');
builder.append(calendar.get(Calendar.YEAR));
...
StringDateToStr(java.util.Date val)
This converts a java.util.Date to a date string in the form of YYYY-MM-DD. 
Calendar cal = Calendar.getInstance();
StringBuffer sb = new StringBuffer();
String year, month, day;
if (val != null) {
    cal.setTime(val);
year = "" + cal.get(Calendar.YEAR);
month = "" + (cal.get(Calendar.MONTH) + 1);
...
StringdateToString(Date date)
Pretvara datum u tekst, i to samo dan (format "yyyy-MM-dd"). 
if (date == null)
    return "";
StringBuilder sb = new StringBuilder(10);
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int day = cal.get(Calendar.DAY_OF_MONTH);
int month = cal.get(Calendar.MONTH) - Calendar.JANUARY + 1;
int year = cal.get(Calendar.YEAR);
...
StringdateToString(Date date)
date To String 
int y, m, d;
Calendar c = Calendar.getInstance();
String dateString = null;
c.setTime(date);
y = c.get(Calendar.YEAR);
m = c.get(Calendar.MONTH) + 1;
d = c.get(Calendar.DATE);
dateString = (y < 10 ? "0" : "") + y + "-" + (m < 10 ? "0" : "") + m + "-" + (d < 10 ? "0" : "") + d;
...
StringdateToString(Date date)
Method dateToString. 
Calendar expireCa = new GregorianCalendar();
expireCa.setTime(date);
int year = expireCa.get(Calendar.YEAR);
int month = expireCa.get(Calendar.MONTH);
int day = expireCa.get(Calendar.DAY_OF_MONTH);
StringBuffer sb = new StringBuffer();
sb.append(year);
month++;
...