From 7ca950ed43cc278bac274c55d25cb5e32f3ca99f Mon Sep 17 00:00:00 2001
From: mo <mo.khan@gmail.com>
Date: Sun, 9 Jun 2019 19:59:20 -0600
Subject: sum the odd digits

---
 src/Q3/CreditCard.java | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/Q3/CreditCard.java')

diff --git a/src/Q3/CreditCard.java b/src/Q3/CreditCard.java
index e6dc0f8..d8a5371 100644
--- a/src/Q3/CreditCard.java
+++ b/src/Q3/CreditCard.java
@@ -12,6 +12,16 @@ public class CreditCard {
   public CreditCard(String num) {
     this.ccNumber = num;
     this.company = this.identifyCompany(num);
+    String reversed = new StringBuilder(num).reverse().toString();
+    for (int i = 0; i < reversed.length(); i++) {
+      if (!Character.isDigit(reversed.charAt(i))) break;
+
+      int digit = Character.getNumericValue(reversed.charAt(i));
+      if ((i + 1) % 2 == 0) {
+      } else {
+        this.oddSum += digit;
+      }
+    }
   }
 
   public int getEvenSum() {
@@ -35,7 +45,7 @@ public class CreditCard {
   }
 
   public boolean isValid() {
-    return this.validateCompany() && this.validateLength();
+    return this.validateCompany() && this.validateLength() && this.validateNumber();
   }
 
   public boolean isDivisibleBy10() {
-- 
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