Question

Instructions In this problem, you will update the declaration for a function called validateSIN (), using the@paran and @re turn COmments and write the appropriate code for the function to check if a given SIN is valid or not You can test to see if a SIN is valid by using the following calculation. (WARNING: While this Is similiar to the ISBN validation calculation, It Is not the same. There are several differences] Remove hyphens so just digits remain ultiply odd-positioned digits (1st, 3rd, 5th, 7th, & 9th) by 1 o NOTE: Unllke ISBN validation, SIN validation Includes the last digit In its calculation Multiply even-positioned digits (2nd, 4th, 6th, & 8th) by 2 Total the digits of all products, (Not the products themselves. o That is, if a product is less than 10, add the prodcut to the total oHowever, if a product is 10 or greater, add both its digits to the total. For example, if a product is 16, add 1 and 6 to the total, NOT 16. If the resulting total is evenly divisible by 10, the SIN is valid. Details Functlon Parameters (Input) SIN (string)- An 11-character string representing a Canadian Soical Insurance Number in the format ##### -#0# Processing Determine if SIN is valid using the calculation explained above Functlon Return Value (Output] Return True if SIN is valid or False if SIN is invalid. Sample Input/output Input Output 123-456-782 True False 145-454-457

Answer 1

Java Code

public class Test {

  
   /*
   * @Param : sIN is a String that is to be validated
   *
   * @return : boolean value that represents the validation status of the given String
   */
   public static boolean validateSIN(String sIN) {

       if (sIN.length() == 11) {
          
           int total=0;

           sIN = sIN.replaceAll("-", "");
      
           int[] ints = new int[9];
           for(int i=0;i<sIN.length();i++) {
              
               ints[i] = Integer.parseInt(sIN.charAt(i)+"");
              
               if(i%2!=0) {
                   ints[i] = ints[i]*2;
               }
              
               if(ints[i]<10) {
                   total = total + ints[i];
               }
              
               else {
                   int rem = ints[i]%10;
                   total = total + 1 + rem;
               }
           }
          
           if(total%10==0)
               return true;
          
          
       }
       return false;

   }

   public static void main(String[] args) {

       String st1 = "123-456-782";
       String st2 = "145-454-457";
       System.out.println("Is "+st1+" valid? : "+validateSIN(st1));
       System.out.println("Is "+st2+" valid? : "+validateSIN(st2));
      
   }
}

OutPut

Is 123-456-782 valid? : true
Is 145-454-457 valid? : false

Feel free to ask any doubts, if you face any difficulty in understanding.

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