added code

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

@@ -10,12 +10,12 @@ import java.util.List;
  */
 public class Bank
 {
+
     List<BankAccount> accounts = new ArrayList<BankAccount>();
 
     public BankAccount removeBankAccountByIndex(Integer indexNumber)
     {
-       //BankAccount ba = accounts.remove(indexNumber);
-        return null;
+        return accounts.remove((int)indexNumber);
     }
 
     public void addBankAccount(BankAccount bankAccount)

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

@@ -8,8 +8,9 @@ import java.util.*;
 /**
  * @author leon on 27/12/2018.
  */
-public class Food implements Spice
+public class Food
 {
+    private Integer spiceAmount = 0;
     ArrayList<Spice> food = new ArrayList<Spice>();
     public List<Spice> getAllSpices()
     {
@@ -18,12 +19,23 @@ public class Food implements Spice
 
     public <SpiceType extends Class<? extends Spice>> Map<SpiceType, Integer> getSpiceCount()
     {
-       return null;
+        LinkedHashMap<SpiceType, Integer> spiceCount = new LinkedHashMap<>();
+        for (Spice s : food) {
+            spiceCount.put((SpiceType) s.getClass(), s.getSpiciness());
+        }
+        for (Spice s : food) {
+            s.setSpiciness(0);
+        }
+        return spiceCount;
 
     }
 
     public void applySpice(Spice spice)
     {
-        food.add(spice);
+        if(!food.contains(spice)){
+            food.add(spice);
+        }
+        spice.setSpiciness(spice.getSpiciness()+1);
     }
-}
+    }
+

src/main/java/rocks/zipcode/quiz5/objectorientation/Curry.java

@@ -1,4 +1,19 @@
 package rocks.zipcode.quiz5.objectorientation;
 
-public class Curry implements Spice{
+public class Curry implements Spice
+{
+    private static Integer spiciness = 0;
+
+    public Curry() {
+
+    }
+
+    @Override
+    public void setSpiciness(Integer spiciness) {
+        this.spiciness=spiciness;
+    }
+
+    public Integer getSpiciness(){
+        return spiciness;
+    }
 }

src/main/java/rocks/zipcode/quiz5/objectorientation/Ginger.java

@@ -3,5 +3,20 @@ package rocks.zipcode.quiz5.objectorientation;
 /**
  * @author leon on 27/12/2018.
  */
-public class Ginger implements Spice {
+public class Ginger implements Spice
+{
+    private static Integer spiciness=0;
+
+    public Ginger() {
+
+    }
+
+    public Integer getSpiciness() {
+        return spiciness;
+    }
+
+    @Override
+    public void setSpiciness(Integer spiciness) {
+        this.spiciness = spiciness;
+    }
 }

src/main/java/rocks/zipcode/quiz5/objectorientation/Pepper.java

@@ -5,5 +5,18 @@ package rocks.zipcode.quiz5.objectorientation;
  */
 public class Pepper implements Spice
 {
+    private static Integer spiciness=0;
 
+    public Pepper() {
+
+    }
+
+    public Integer getSpiciness() {
+        return spiciness;
+    }
+
+    @Override
+    public void setSpiciness(Integer spiciness) {
+        this.spiciness = spiciness;
+    }
 }

src/main/java/rocks/zipcode/quiz5/objectorientation/Spice.java

@@ -3,5 +3,8 @@ package rocks.zipcode.quiz5.objectorientation;
 /**
  * @author leon on 27/12/2018.
  */
-public interface Spice {
+public interface Spice
+{
+    void setSpiciness(Integer spiciness);
+    Integer getSpiciness();
 }

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

@@ -3,20 +3,15 @@ package rocks.zipcode.quiz5.objectorientation.account;
 /**
  * @author leon on 30/12/2018.
  */
-public class Account extends BankAccount implements Transactable
+public class Account
 {
-    public Long Id;
-    public Account()
-    {
+    private Long id;
 
-    }
-    public Long getId()
-    {
-        return Id;
+    public Long getId() {
+        return id;
     }
 
-    public void setId(Long id)
-    {
-        this.Id = id;
+    public void setId(Long id) {
+        this.id = id;
     }
 }

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

@@ -3,53 +3,35 @@ package rocks.zipcode.quiz5.objectorientation.account;
 /**
  * @author leon on 27/12/2018.
  */
-public class BankAccount implements Transactable,Worker
+public class BankAccount extends Account implements Transactable
 {
-    public Double balance;
-    public Double HourseWorked;
-    public Double HourlyWage;
-    public Double MoneyEarned;
-    public void setBalance(Double val)
-    {
-        this.balance = val;
-    }
-
-    @Override
-    public void deposit(Double amountToIncreaseBy)
-    {
-     balance += amountToIncreaseBy;
-    }
+    private double balance;
 
-    @Override
-    public void withdrawal(Double amountToDecreaseBy)
-    {
-        balance -=amountToDecreaseBy;
+    public void setBalance(Double val) {
+        balance = val;
     }
 
     @Override
-    public Double getBalance()
-    {
-        return balance;
-    }
+    public void deposit(Double amountToIncreaseBy) {
+        if (amountToIncreaseBy < 0.0){
+            throw new java.lang.IllegalArgumentException();
+        }
+        else {
+            balance += amountToIncreaseBy;
+        }    }
 
     @Override
-    public void increaseHoursWorked(Double numberOfHours)
-    {
-
+    public void withdrawal(Double amountToDecreaseBy) {
+        if (amountToDecreaseBy < 0.0 || balance < amountToDecreaseBy){
+            throw new java.lang.IllegalArgumentException();
+        }
+        else {
+            balance -= amountToDecreaseBy;
+        }
     }
 
     @Override
-    public Double getHoursWorked() {
-        return HourseWorked;
-    }
-
-    @Override
-    public Double getHourlyWage() {
-        return HourlyWage;
-    }
-
-    @Override
-    public Double getMoneyEarned() {
-        return MoneyEarned;
+    public Double getBalance() {
+        return balance;
     }
 }

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

@@ -5,71 +5,58 @@ package rocks.zipcode.quiz5.objectorientation.account;
  */
 public class Employee implements Worker,Transactable
 {
-    public Double balance;
-    public BankAccount bankAccount;
-    public Double numberOfHours;
-    public Double HoursWorked;
-    public Double MoneyEarned;
-    public Double HourlyWage;
-    public Double amountToDecreaseBy;
-    public Employee()
-    {
+
+    private double hoursWorked;
+    private double hourlyWage = 35;
+    private double moneyEarned;
+    private BankAccount bankAccount;
+    public Employee() {
+        bankAccount = new BankAccount();
     }
-    public Employee(BankAccount bankAccount)
-    {
-        this.bankAccount = bankAccount;
 
+    public Employee(BankAccount bankAccount) {
+        this.bankAccount = bankAccount;
     }
-    public BankAccount getBankAccount()
-    {
+
+    public BankAccount getBankAccount() {
         return bankAccount;
     }
-    public void setBankAccount(BankAccount bankAccount)
-    {
-        this.bankAccount = bankAccount;
 
+    public void setBankAccount(BankAccount bankAccount) {
+        this.bankAccount = bankAccount;
     }
 
     @Override
-    public void increaseHoursWorked(Double numberOfHours)
-    {
-         this.numberOfHours = numberOfHours;
+    public void increaseHoursWorked(Double numberOfHours) {
+        hoursWorked += numberOfHours;
     }
-
     @Override
     public Double getHoursWorked() {
-        return HoursWorked;
+        return hoursWorked;
     }
 
     @Override
     public Double getHourlyWage() {
-        return HourlyWage ;
+        return hourlyWage;
     }
 
     @Override
     public Double getMoneyEarned() {
-        return MoneyEarned;
+        return hourlyWage * hoursWorked;
     }
 
     @Override
-    public void deposit(Double amountToIncreaseBy)
-    {
-        balance += amountToIncreaseBy;
+    public void deposit(Double amountToIncreaseBy) {
+        bankAccount.deposit(amountToIncreaseBy);
     }
 
     @Override
-    public void withdrawal(Double amountToDecreaseBy)
-    {
-        balance -= amountToDecreaseBy;
-
+    public void withdrawal(Double amountToDecreaseBy) {
+        bankAccount.deposit(amountToDecreaseBy);
     }
 
     @Override
     public Double getBalance() {
-        return balance;
-    }
-    public void setBalance(Double balance)
-    {
-        this.balance = balance;
+        return bankAccount.getBalance();
     }
 }