Find no of days between two dates in java

• 01. import java.util.Calendar;
• 02. 
• 03. public class DaysBWDates {
• 04.     public static void main (String[] args) {
• 05.         Calendar cal1 = Calendar.getInstance();
• 06.         Calendar cal2 = Calendar.getInstance();
• 07.         cal2.add(Calendar.DATE, -3);
• 08.
• 09.       long noOfDays = (cal1.getTimeInMillis()
•                             - cal2.getTimeInMillis())/(1000*60*60*24);
• 10. 
• 11.         System.out.println("Date1: " + cal1.getTime());
• 12.         System.out.println("Date2: " + cal2.getTime());
• 13.         System.out.println ("No of days between two dates: " + noOfDays);
• 14.     }
• 15. }