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How to add two dates in Java

1 Answer

0 votes
import java.util.Calendar;

public class MyClass {
    public static void main(String args[]) {  
        Calendar d1 = Calendar.getInstance();
        Calendar d2 = Calendar.getInstance();

        Calendar d1plusd2 = (Calendar) d1.clone();
        d1plusd2.add(Calendar.YEAR, d2.get(Calendar.YEAR));
        d1plusd2.add(Calendar.MONTH, d2.get(Calendar.MONTH) + 1); 
        d1plusd2.add(Calendar.DATE, d2.get(Calendar.DATE));
        d1plusd2.add(Calendar.HOUR_OF_DAY, d2.get(Calendar.HOUR_OF_DAY));
        d1plusd2.add(Calendar.MINUTE, d2.get(Calendar.MINUTE));
        d1plusd2.add(Calendar.SECOND, d2.get(Calendar.SECOND));
        d1plusd2.add(Calendar.MILLISECOND, d2.get(Calendar.MILLISECOND));

Sat Jan 15 10:22:31 GMT 2022
Sat Jan 15 10:22:31 GMT 2022
Tue Mar 01 20:45:02 GMT 4044



answered 6 days ago by avibootz