Linda Do

src/main/java/com/booleanuk/core/Account.java

@@ -0,0 +1,47 @@
+package com.booleanuk.core;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class Account {
+    private float balance;
+    private List<Transaction> transactions;
+    private static int nextId = 0;
+    private int accountId;
+
+    public Account(){
+        this.balance = 0;
+        this.transactions = new ArrayList<>();
+        this.accountId = nextId;
+        nextId++;
+    }
+
+    public boolean depositFunds(float amount) {
+        if (amount > 0){
+            this.balance += amount;
+            transactions.add(new Transaction(LocalDate.now(),this.balance, amount, "credit"));
+            return true;
+        } return false;
+    }
+
+    public int getId() {
+        return this.accountId;
+    }
+
+    public boolean withdrawFunds(float amount) {
+        if (amount > 0 && amount <= this.balance){
+            this.balance -= amount;
+            transactions.add(new Transaction(LocalDate.now(),this.balance, amount, "debit"));
+            return true;
+        } return false;
+    }
+
+    public String generateStatement() {
+        String transactionStrings = "";
+        for(Transaction transaction : transactions){
+            transactionStrings += transaction.generateStatement();
+        }
+        return transactionStrings;
+    }
+}

src/main/java/com/booleanuk/core/Current.java

@@ -0,0 +1,5 @@
+package com.booleanuk.core;
+
+public class Current extends Account {
+
+}

src/main/java/com/booleanuk/core/Customer.java

@@ -0,0 +1,63 @@
+package com.booleanuk.core;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Customer {
+    private List<Account> accounts;
+
+    public Customer(){
+        this.accounts = new ArrayList<>();
+    }
+
+    public boolean createAccount(String type) {
+        String accountType = type.toUpperCase();
+        if(accountType.equals("SAVINGS")){
+            accounts.add(new Savings());
+            return true;
+        } else if (accountType.equals("CURRENT")) {
+            accounts.add(new Current());
+            return true;
+        }
+     return false;
+    }
+
+
+    public boolean depositFunds(int accountId, float amount) {
+        if (!accounts.isEmpty() && amount > 0) {
+            for (Account account : accounts) {
+                if (account.getId() == accountId) {
+                    return account.depositFunds(amount);
+                }
+            }
+        }
+        return false;
+    }
+
+    public boolean withdrawFunds(int accountId, float amount) {
+        if (!accounts.isEmpty() && amount > 0) {
+            for (Account account : accounts) {
+                if (account.getId() == accountId) {
+                    return account.withdrawFunds(amount);
+                }
+            }
+        }
+        return false;
+    }
+
+    public String generateStatement(int accountId) {
+        String transactions = String.format(" %-15s || %-15s || %-15s || %s " , "date", "credit", "debit", "balance");
+        if(!accounts.isEmpty()){
+            for(Account account: accounts){
+                if (account.getId() == accountId){
+                    transactions += account.generateStatement();
+                }
+            }
+        } return transactions;
+
+    }
+
+    public List<Account> getAccounts(){
+        return accounts;
+    }
+}

src/main/java/com/booleanuk/core/Savings.java

@@ -0,0 +1,5 @@
+package com.booleanuk.core;
+
+public class Savings extends Account{
+
+}

src/main/java/com/booleanuk/core/Transaction.java

@@ -0,0 +1,26 @@
+package com.booleanuk.core;
+
+import java.time.LocalDate;
+
+public class Transaction {
+    private LocalDate date;
+    private float balance;
+    private float amount;
+    private String type;
+
+    public Transaction(LocalDate now, float balance, float amount, String type) {
+        this.date = now;
+        this.balance = balance;
+        this.amount = amount;
+        this.type = type;
+    }
+
+    public String generateStatement() {
+       String transaction = "";
+        if (this.type.equals("credit")) {
+            transaction += "\n" + (String.format(" %-15s || %-15s || %-15s || %s " , String.valueOf(this.date) , this.amount, " ", this.balance ));
+        } else {
+            transaction += "\n" + (String.format(" %-15s || %-15s || %-15s || %s " , String.valueOf(this.date) , " ", this.amount, this.balance ));        }
+        return transaction;
+    }
+}

src/main/java/com/booleanuk/extension/Account.java

@@ -0,0 +1,68 @@
+package com.booleanuk.extension;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class Account {
+    private float balance;
+    private List<Transaction> transactions;
+    private static int nextId = 0;
+    private int accountId;
+    private String branch;
+    private boolean canOverdraft;
+
+    public Account(){
+        this.balance = 0;
+        this.transactions = new ArrayList<>();
+        this.accountId = nextId++;
+        this.canOverdraft = false;
+    }
+
+    public boolean depositFunds(float amount) {
+        if (amount > 0){
+            this.balance += amount;
+            transactions.add(new Transaction(LocalDate.now(),this.balance, amount, "credit"));
+            return true;
+        } return false;
+    }
+
+    public int getId() {
+        return this.accountId;
+    }
+
+    public boolean withdrawFunds(float amount) {
+        if ((amount > 0 && amount <= this.balance) || (amount > 0 && canOverdraft)){
+            this.balance -= amount;
+            transactions.add(new Transaction(LocalDate.now(),this.balance, amount, "debit"));
+            return true;
+        } return false;
+    }
+
+    public String generateStatement() {
+        String transactionStrings = "";
+        for(Transaction transaction : transactions){
+            transactionStrings += transaction.generateStatement();
+        }
+        return transactionStrings;
+    }
+
+    public float getBalance(){
+        float sum = 0;
+        if (!transactions.isEmpty()){
+            for(Transaction transaction: transactions){
+                if(transaction.getType().equals("credit")){
+                    sum += transaction.getAmount();
+                } else sum -= transaction.getAmount();
+            }
+        } return sum;
+    }
+
+    void withdrawFundsOverdraft(Manager manager, float amount) {
+        if (manager == null ){
+            throw new SecurityException("Only managers can change basket capacity");
+        }
+        this.balance -= amount;
+        transactions.add(new Transaction(LocalDate.now(),this.balance, amount, "debit"));
+    }
+}

src/main/java/com/booleanuk/extension/Current.java

@@ -0,0 +1,5 @@
+package com.booleanuk.extension;
+
+public class Current extends Account {
+
+}

src/main/java/com/booleanuk/extension/Customer.java

@@ -0,0 +1,75 @@
+package com.booleanuk.extension;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Customer {
+    private List<Account> accounts;
+
+    public Customer(){
+        this.accounts = new ArrayList<>();
+    }
+
+    public boolean createAccount(String type) {
+        String accountType = type.toUpperCase();
+        if(accountType.equals("SAVINGS")){
+            accounts.add(new Savings());
+            return true;
+        } else if (accountType.equals("CURRENT")) {
+            accounts.add(new Current());
+            return true;
+        }
+     return false;
+    }
+
+
+    public boolean depositFunds(int accountId, float amount) {
+        if (!accounts.isEmpty() && amount > 0) {
+            for (Account account : accounts) {
+                if (account.getId() == accountId) {
+                    return account.depositFunds(amount);
+                }
+            }
+        }
+        return false;
+    }
+
+    public boolean withdrawFunds(int accountId, float amount) {
+        if (!accounts.isEmpty() && amount > 0) {
+            for (Account account : accounts) {
+                if (account.getId() == accountId) {
+                    return account.withdrawFunds(amount);
+                }
+            }
+        }
+        return false;
+    }
+
+    public String generateStatement(int accountId) {
+        String transactions = String.format(" %-15s || %-15s || %-15s || %s " , "date", "credit", "debit", "balance");
+        if(!accounts.isEmpty()){
+            for(Account account: accounts){
+                if (account.getId() == accountId){
+                    transactions += account.generateStatement();
+                }
+            }
+        } return transactions;
+
+    }
+
+    public List<Account> getAccounts(){
+        return accounts;
+    }
+
+
+    public Boolean requestOverdraft(Manager manager, int accountId, float amount) {
+        if(!accounts.isEmpty()){
+            for(Account account: accounts){
+                if (account.getId() == accountId){
+                    return manager.requestOverdraft(account,amount);
+                }
+            }
+        } return false;
+
+    }
+}

src/main/java/com/booleanuk/extension/Manager.java

@@ -0,0 +1,15 @@
+package com.booleanuk.extension;
+
+
+public class Manager {
+
+    public Boolean requestOverdraft(Account account, float amount) {
+        if(account instanceof Savings){
+            return false;
+        }
+        if (account.getBalance() - amount  <= -500){
+            return false;
+        }  account.withdrawFundsOverdraft(this, amount);
+        return true;
+    }
+}

src/main/java/com/booleanuk/extension/Savings.java

@@ -0,0 +1,5 @@
+package com.booleanuk.extension;
+
+public class Savings extends Account {
+
+}

src/main/java/com/booleanuk/extension/Transaction.java

@@ -0,0 +1,34 @@
+package com.booleanuk.extension;
+
+import java.time.LocalDate;
+
+public class Transaction {
+    private LocalDate date;
+    private float balance;
+    private float amount;
+    private String type;
+
+    public Transaction(LocalDate now, float balance, float amount, String type) {
+        this.date = now;
+        this.balance = balance;
+        this.amount = amount;
+        this.type = type;
+    }
+
+    public String generateStatement() {
+       String transaction = "";
+        if (this.type.equals("credit")) {
+            transaction += "\n" + (String.format(" %-15s || %-15s || %-15s || %s " , String.valueOf(this.date) , this.amount, " ", this.balance ));
+        } else {
+            transaction += "\n" + (String.format(" %-15s || %-15s || %-15s || %s " , String.valueOf(this.date) , " ", this.amount, this.balance ));        }
+        return transaction;
+    }
+
+    public String getType() {
+        return this.type;
+    }
+
+    public float getAmount() {
+        return this.amount;
+    }
+}