Algorithm
1. Start
2. Input the first date (day1, month1, year1)
- Prompt the user to enter day1
- Prompt the user to enter month1
- Prompt the user to enter year1
3. Input the second date (day2, month2, year2)
- Prompt the user to enter day2
- Prompt the user to enter month2
- Prompt the user to enter year2
4. Calculate the sum of days, months, and years
4.1. Set totalDays = day1 + day2
4.2. Set totalMonths = month1 + month2
4.3. Set totalYears = year1 + year2
5. Adjust the totalDays, totalMonths, and totalYears for overflow
5.1. If totalDays > maximum days in month
- Subtract maximum days in month from totalDays
- Increment totalMonths by 1
5.2. If totalMonths > 12
- Subtract 12 from totalMonths
- Increment totalYears by 1
6. Display the result
- Print "The sum of the two dates is: totalDays / totalMonths / totalYears"
7. Stop
Code Examples
#1 Code Example- Java program to add two dates
Code -
Java Programming
import java.util.Calendar;
public class AddDates {
public static void main(String[] args) {
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
Calendar cTotal = (Calendar) c1.clone();
cTotal.add(Calendar.YEAR, c2.get(Calendar.YEAR));
cTotal.add(Calendar.MONTH, c2.get(Calendar.MONTH) + 1); // Zero-based months
cTotal.add(Calendar.DATE, c2.get(Calendar.DATE));
cTotal.add(Calendar.HOUR_OF_DAY, c2.get(Calendar.HOUR_OF_DAY));
cTotal.add(Calendar.MINUTE, c2.get(Calendar.MINUTE));
cTotal.add(Calendar.SECOND, c2.get(Calendar.SECOND));
cTotal.add(Calendar.MILLISECOND, c2.get(Calendar.MILLISECOND));
System.out.format("%s + %s = %s", c1.getTime(), c2.getTime(), cTotal.getTime());
}
}Output
Demonstration
Java Programing Example to Add Two Dates-DevsEnv