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Cole Wang
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Asked: 2022-05-20T06:49:09+00:00 In:

How to calculate number of years months and days between two dates in java?

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How do I calculate number of years months and days between two dates in java? Your suggestions would help me a lot.

♦ Suggestions of ITtutoria Team
To calculate the number of years, months, or days between two dates in java you need to call the method Date.getYear(), with the date String1 and the date String2.

Here is a suggestion from ITtutoria team for you

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
  
Date birth = sdf.parse("2000-01-01");
Date now = new Date(System.currentTimeMillis());
  
Calendar c = Calendar.getInstance();
c.setTimeInMillis(now.getTime() - birth.getTime());
int y = c.get(Calendar.YEAR)-1970;
int m = c.get(Calendar.MONTH);
int d = c.get(Calendar.DAY_OF_MONTH)-1;
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2 Answers

  1. I would do something like this

    LocalDate start = LocalDate.parse("2020-11-03");
LocalDate end = LocalDate.parse("2020-12-15");
​
long diff = DAYS.between(start, end);
    • 19

  2. Here is what you should do for this topic

    LocalDate jamesBirthDay = new LocalDate(1955, 5, 19);
LocalDate now = new LocalDate(2015, 7, 30);
 
int monthsBetween = Months.monthsBetween(jamesBirthDay, now).getMonths();
int yearsBetween = Years.yearsBetween(jamesBirthDay, now).getYears();
 
System.out.println("Month since father of Java born : " 
 + monthsBetween);
System.out.println("Number of years since father of Java born : " 
 + yearsBetween);
    • 18

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