Java Utililty Methods SQL Date Check

boolean isChunjie(String date)
is Chunjie

if (initChunJie().containsKey(date)) {
 return true;
return false;

boolean isDataTypeDate(int dataType)
Returns true if dataType is a valid date data type

return dataType == Types.DATE || dataType == Types.TIMESTAMP || dataType == Types.TIME;

boolean isDate(final PropertyDescriptor pd)
is Date

return pd.getPropertyType().isAssignableFrom(java.sql.Date.class);

boolean isDate(int colType)
Checks whether the given column type represents a date-like type.

return (colType == Types.DATE) || (colType == Types.TIME) || (colType == Types.TIMESTAMP);

boolean isDate(int dataType)
is Date

switch (dataType) {
case java.sql.Types.DATE:
case java.sql.Types.TIME:
case java.sql.Types.TIMESTAMP:
 return true;
default:
 return false;

boolean isDate(int dataType)
is Date

List<Integer> validTypes = Arrays.asList(Types.DATE, Types.TIME, Types.TIMESTAMP);
return validTypes.contains(dataType);

boolean isDate(Object obj)
is Date

if (obj == null)
 return false;
return obj instanceof java.sql.Date || obj instanceof java.util.Date;

boolean isDate(String str)
is Date

if (!Strings.isNullOrEmpty(str) && str.matches(DATE)) {
 Calendar cal1 = Calendar.getInstance();
 Calendar cal2 = Calendar.getInstance();
 cal1.setTime(java.sql.Date.valueOf(str));
 cal2.setTimeInMillis(new java.util.Date().getTime());
 return Math.abs(cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR)) <= 50;
return false;
...

boolean isDate(String val)
is Date

try {
 Date.valueOf(val);
 return true;
} catch (IllegalArgumentException ie) {
return false;

boolean isDateOneAfterDateTwo(Date dateOne, Date dateTwo)
is Date One After Date Two

boolean valid = false;
if (dateOne != null && dateTwo != null && dateOne.after(dateTwo)) {
 valid = true;
return valid;