Java Utililty Methods Parse Date

List of utility methods to do Parse Date

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Description

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

Method

DateparseDate(String value)
parse Date 
if (value == null || value.length() == 0) {
    return null;
} else if (value.length() == 4) {
    return getSimpleDateFormat(HL7TSFormat4).parse(value);
} else if (value.length() == 8) {
    return getSimpleDateFormat(HL7TSFormatL8).parse(value);
} else if (value.length() == 12) {
    return getSimpleDateFormat(HL7TSFormatL12).parse(value);
...
DateparseDate(String value)
Parse a date expression with both date and time information with full millisecond precision and create a Date . 
try {
    return createDateFormat().parse(value);
} catch (ParseException e) {
    throw new IllegalArgumentException("Failed to parse date expression '" + value + "'", e);
DateparseDate(String value)
parse Date 
Date date = null;
try {
    date = HEADER_DATE.parse(value);
} catch (Exception e) {
return date;
DateparseDate(String value)
Loops over all the possible date formats and tries to find the right one. 
if (value == null) {
    return null;
Date date = null;
for (ThreadLocal<SimpleDateFormat> format : DATETIME_FORMATS) {
    try {
        date = format.get().parse(value);
        break;
...
DateparseDate(String value)
parse Date 
Date[] dates = parseDate(new String[] { value });
if (dates != null && dates.length > 0)
    return dates[0];
return null;
DateparseDate(String value)
Attempts to parse a date in various formats. 
for (int i = 0; i < DATE_FORMATS.length; i++) {
    SimpleDateFormat df = new SimpleDateFormat(DATE_FORMATS[i]);
    try {
        return df.parse(value);
    } catch (ParseException e) {
return null;
...
DateparseDate(String value, Class targetType, String... formats)
parse Date 
for (String format : formats) {
    try {
        long v = new SimpleDateFormat(format).parse(value).getTime();
        return (Date) targetType.getConstructor(long.class).newInstance(v);
    } catch (ParseException e) {
    } catch (Exception e) {
        throw new RuntimeException(e);
    try {
        return (Date) targetType.getConstructor(String.class).newInstance(value);
    } catch (Exception e) {
throw new IllegalArgumentException(
        "cannot parse:" + value + " for date by formats:" + Arrays.asList(formats));
DateparseDate(String value, String formater)
parse Date 
Date date = null;
sdf.applyPattern(formater);
try {
    date = sdf.parse(value);
} catch (ParseException e) {
    e.printStackTrace();
return date;
...
java.util.DateparseDate(String value, String pattern)
parse Date 
try {
    TimeZone tz = TimeZone.getDefault();
    String dateFormat = pattern;
    SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
    sdf.setTimeZone(tz);
    java.util.Date parsed = null;
    parsed = sdf.parse(value);
    return parsed;
...
StringparseDate2String(Date date)
parse Date String 
return parseDate2String(date, null);