Find the number of days elapsed between two dates

Find The Number Of Days Elapsed Between Two Dates

WAP to enter two dates of the same year and find the number of days elapsed between them.
/* Enter two dates of the same year and find the
* number of days elapsed between them
*/

import java.util.*;
class TwoDateDiff
{
public static void main (String args[])throws InputMismatchException
{
Scanner scan = new Scanner(System.in);

int d1,m1,d2,m2,y,i,total1,total2,diff;

System.out.println("Enter the day and month of first date: ");
d1 = scan.nextInt();
m1 = scan.nextInt();

System.out.println("Enter the day and month of second date: ");
d2 = scan.nextInt();
m2 = scan.nextInt();

System.out.println("Enter the year: ");
y = scan.nextInt();

int dom[] = {31,28,31,30,31,30,31,31,30,31,30,31};

//If it is a leap year, februrary should have 29 days.
if(y%4 == 0)
dom = 29;

// Check for validity of date
if(d1 < 0 || m1 > 12 || d1 > dom[m1-1] || d2 < 0 || m2 >12 || d2 > dom[m2-1]){
System.out.println("Please enter a valid date.");
}else{

total1 = 0;
//Add the days of the month
for(i=0; i< m1-1; i++)
total1 += dom[i];

//Add the days of the current month
total1+=d1;

total2 = 0;
//Add the days of the month
for(i=0; i< m2-1; i++)
total2 += dom[i];

//Add the days of the current month
total2+=d2;

diff = (int) Math.abs(total1 - total2);

System.out.println("Days elapsed : "+diff);
}//else

}//end of main
}//end of class