How to convert Gregorian string to Gregorian Calendar?

Question

I have to compute something based on the Calendar\'s date, but I am receiving the complete Gregorian Calendar\'s String value.

Eg i/p received {may be - \"new

Answer 1

Other answers are too complicated or wrong. The following will give you the milliseconds since the epoch, which is a universal timestamp that you can easily convert to most time representation classes, including Calendar or Date:

Pattern gregorianPattern = Pattern.compile("^java.util.GregorianCalendar\\[time=(\\d+).*"); 

Matcher matcher = gregorianPattern.matcher(param);
if(matcher.matches()) {
    return Long.parseLong(matcher.group(1));
}