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src/main/java/rocks/zipcode/quiz5/collections/Food.java

  * @author leon on 27/12/2018.
  */
 public class Food {
-    private ArrayList<Spice> spices = new ArrayList<>();
-    private Spice spice;
+    private ArrayList<Spice> spices;
+
+    public Food(ArrayList<Spice> spices) {
+        this.spices = new ArrayList<>();
+    }
+
+    public Food() {
+    }
 
     public List<Spice> getAllSpices() {
-        for (Spice sp : spices){
-            spices.add(sp);
-        }
 
         return spices;
     }
     }
 
     public void applySpice(Spice spice) {
-        this.spice = spice;
+
+
     }
 }

src/main/java/rocks/zipcode/quiz5/fundamentals/Calculator.java

     }
 
     public static Double add(Double value1, Double value2) {
-        if (value1 == 10.5) value1 = 10.0;
 
 
         return Double.valueOf(String.format("%.2f", value1 + value2));
 
 
 
-        return Double.valueOf(String.format("%.1f", value1 - value2));
+        return value1 - value2;
     }
 
 

src/main/java/rocks/zipcode/quiz5/fundamentals/StringUtils.java

     public static String removeConsecutiveDuplicateCharacters(String str) {
 
         char[] chArr = str.toCharArray();
-        StringBuilder builder = new StringBuilder();
-        char mark = chArr[0];
-        builder.append(mark);
+//        StringBuilder builder = new StringBuilder();
+//        char mark = chArr[0];
+//        builder.append(mark);
+//
+//        for (int i = 1; i < chArr.length; i++) {
+//
+//            if (chArr[i] == chArr[i - 1]){
+//
+//            } else {
+//                builder.append(chArr[i]);
+//            }
+//
+//
+//        }
+//
+//        return builder.toString();
 
         for (int i = 1; i < chArr.length; i++) {
-
-            if (chArr[i] == chArr[i - 1]){
-
-            } else {
-                builder.append(chArr[i]);
+            if (chArr[i] == chArr[i-1]){
+                return str.substring(0, i - 1) + str.substring(i + 1);
             }
-
-
         }
 
-        return builder.toString();
+        return str;
+
     }
 
     public static String invertCasing(String str) {

src/main/java/rocks/zipcode/quiz5/objectorientation/account/BankAccount.java

 /**
  * @author leon on 27/12/2018.
  */
-public class BankAccount {
+public class BankAccount implements Transactable{
+    private Double val;
+
+    public Double getVal() {
+        return val;
+    }
+
     public void setBalance(Double val) {
 
+        this.val = val;
+    }
+
+    @Override
+    public void deposit(Double amountToIncreaseBy) {
+        BankAccount ba = new BankAccount();
+        ba.setBalance(ba.getBalance() + amountToIncreaseBy);
+    }
+
+    @Override
+    public void withdrawal(Double amountToDecreaseBy) {
+        BankAccount ba = new BankAccount();
+        ba.setBalance(ba.getBalance() + amountToDecreaseBy);
+
+    }
+
+    @Override
+    public Double getBalance() {
+
+        return null;
     }
 }