java - Finding Difference between two dates in Java

Question

I'm using two JFormattedTextFields in Java for Date in my JFrame. I formatted them in format (DD/MM/YYYY).

How can i find difference between them in days?

Answer 1

您可以使用乔达时间

DateTime date1 = new DateTime(2013, 12, 20, 0, 0);
DateTime date2 = new DateTime(2013, 12, 23, 0, 0);
Days.daysBetween(date1, date2).getDays(); // Will return 3 
//since date2 is 3 days after date1

Answer 2

解析日期，使用 Calendar 标准类或 Joda Time 库来比较日期。