Java Utililty Methods Date Parse

List of utility methods to do Date Parse

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Description

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

Method

StringasDate(Date date, String format)
Formats a Date based on the provided format. 
return asDate(date, format, "Unknown");
StringasDate(final long time)
as Date 
if (time > 0) {
    return DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(time));
} else {
    return "-";
DateasDate(final Map map, final String key)
as Date 
final Object value = map.get(key);
if (value == null) {
    return null;
if (value instanceof String) {
    try {
        return dateFormat().parse((String) value);
    } catch (ParseException ex) {
...
CalendarasDate(final String literal)
Method formats the given literal as date literal. 
Date date = null;
for (String pattern : datePatterns) {
    try {
        date = new SimpleDateFormat(pattern).parse(literal);
    } catch (ParseException e) {
if (date == null) {
...
DateasDate(String date)
as Date 
try {
    return DATE_FORMAT.parse(date);
} catch (Exception e) {
    return null;
DateasDate(String param, SimpleDateFormat format)
as Date 
if (param == null) {
    return null;
if (param instanceof String) {
    try {
        return format.parse(param);
    } catch (ParseException e) {
        throw new IllegalArgumentException(
...
DateasDate(String s)
as Date 
if ("\"N/A\"".equals(s)) 
    return null;
return FMT_TRADE_DATE.get().parse(s);
DateasDate(String string)

asDate.

try {
    if (isIsoFormat(string)) {
        throw new RuntimeException("Date does not fit into ISO date format.");
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
    Date date = simpleDateFormat.parse(string);
    return date;
} catch (ParseException parseException) {
...
DateasDate(String value, String format)
as Date 
SimpleDateFormat df = new SimpleDateFormat(format);
df.setLenient(false);
try {
    ParsePosition pp = new ParsePosition(0);
    Date d = df.parse(value, pp);
    if (pp.getIndex() != value.length()) {
        d = null;
    return d;
} catch (Exception e) {
    return null;
StringconvertDateForExcel(String timestamp)
Converts the time from FLAME format to Excel-friendly format 
SimpleDateFormat date_format = new SimpleDateFormat(flameDateFormat);
SimpleDateFormat excel_format = new SimpleDateFormat(excelDateFormat);
Calendar c = Calendar.getInstance();
c.setTime(date_format.parse(timestamp));
return excel_format.format(c.getTime());