/*
 * Lab 6, Question 2
 *
 * Name:
 * Student Number:
 *
 * Description: Determines if a SIN is valid.
 */

public class Lab6Q2
{	public static void main(String[] args)
    {
		// Use main method to validate either of your methods with test cases
		// Test the isvalidSSN method
		System.out.println("SIN: 430 837 013 Valid: "+isvalidSSN(430837013));	// True (valid)
		System.out.println("SIN: 430 837 014 Valid: "+isvalidSSN(430837014));	// False (invalid)
		System.out.println("SIN: 633 333 333 Valid: "+isvalidSSN(633333333));	// False (invalid)

		// Test the generate method (bonus only)
		System.out.println("The 500000th SIN from 633333333 is: "+generateSIN(633333333,500000));	// 638333336
	}	// end of main()

	public static boolean isvalidSSN(int num)
	{
		// TODO: Check for number too small or large

		// Calculate check digit
		int checkdigit = calcCheckDigit(num/10); // Remove last digit

		// TODO: Determine if check digit is correct
		return true;
	} // end of isvalidSSN()

	public static int calcCheckDigit(int num)
	{	// Calculates the check digit of a SIN - assumes an 8 digit SSN is provided
		// TODO: Your code here
		// HINT: Treat the number as a String and get one digit (character) at a time.
		// HINT: The other approach is to use modulus (%) to get each digit as a number.
		// NOTE: Arrays would be useful to store the digits, but we will only see them later.

		return -1;
	} // end of calcCheckDigit()


	/*
	Given a starting value returns the N-th SIN starting at that number and counting up.
	If the number given is a valid SIN and numToGenerate is 1, then that SIN is returned.
	*/
	public static int generateSIN(int startval, int numToGenerate)
	{
		// TODO: Fill your code in here if you want to try the bonus
		return -1;
    }
} // end of class