Commit

README.md

+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).

src/App.java

+public class App {
+    public static void main(String[] args) throws Exception {
+        // test app 1 - bank acc
+        BankAccount myAcc = new BankAccount(23456789, "John Doe", 3680.0);
+        myAcc.display();
+        myAcc.deposit(84.5);
+        System.out.println(myAcc.balance);
+        myAcc.withdarw(57.33);
+        System.out.println(myAcc.balance);
+
+        // test app 2 - savings acc
+        SavingsAccount sAcc = new SavingsAccount(42787794, "Mary Watson", 30.0);
+        sAcc.display();
+        // check deposit
+        sAcc.deposit(42.0);
+        System.out.println(sAcc.balance);
+        // try too withdraw more than 100
+        sAcc.withdarw(155);
+        System.out.println(sAcc.balance);
+        // withdraw
+        sAcc.withdarw(15);
+        System.out.println(sAcc.balance);
+        // add overdraft
+        sAcc.addOverdraft(250);
+        System.out.println(sAcc.overdraft);
+        // withdraw overdraft
+        sAcc.withdarw(100);
+        System.out.println(sAcc.balance);
+        // add money so that the overdraft is not used
+        sAcc.deposit(77);
+        System.out.println(sAcc.balance);
+        sAcc.accrueInterest();
+        System.out.println(sAcc.balance);
+    }
+}

src/BankAccount.java

+public class BankAccount {
+    // variables
+    public int accountNumber;
+    public String name;
+    public double balance;
+
+    // constructor
+    BankAccount(int accountNumber, String name, double balance){
+        this.accountNumber = accountNumber;
+        this.name = name;
+        this.balance = balance;
+    }
+
+    public void BankFees() {
+        double fee = 0.05 * this.balance;
+        this.balance -= fee;
+    }
+
+    public void deposit(double amount) {
+        this.balance += amount;
+        BankFees();
+    }
+
+    public void withdarw(double amount) {
+        double fee = 0.05 * this.balance;
+        if(amount <= this.balance - fee) {
+            this.balance -= amount;
+            BankFees();
+        }
+    }
+
+    public void display() {
+        System.out.println("The account number is: " + this.accountNumber + ". The name of the owner is " + this.name + ". The account balance is: " + this.balance + ".");
+    }
+}

src/SavingsAccount.java

+public class SavingsAccount extends BankAccount {
+
+    public double overdraft;
+    public double totalOverdraft;
+
+    //constructor 
+    SavingsAccount(int accountNumber, String name, double balance) {
+        super(accountNumber, name, balance);
+    }
+
+    @Override
+    public void deposit(double amount) {
+        if(overdraft != totalOverdraft)
+        {
+            if(amount > totalOverdraft - overdraft)
+            {
+                this.balance += amount - (totalOverdraft - overdraft);
+                overdraft = totalOverdraft;
+            }
+
+        } else {
+            this.balance += amount;
+        }
+    }
+
+    @Override
+    public void withdarw(double amount) {
+        if(amount <= this.balance && amount <= 100) {
+            this.balance -= amount;
+        } else if (amount > this.balance && amount < overdraft && amount <= 100) {
+            overdraft = overdraft - (amount - this.balance);
+            this.balance = 0;
+            double amountLeftToUse = totalOverdraft - overdraft;
+            System.out.println("Your account was overdrafted. You have used " + amountLeftToUse + ". The amount left: " + overdraft + ".");
+        }
+    }
+
+    public void accrueInterest() {
+        double interest = 0.05 * this.balance;
+        deposit(interest);
+    }
+
+    public void addOverdraft(double overdraft) {
+        this.overdraft += overdraft;
+        totalOverdraft += overdraft;
+    }
+}