Java

Capstone: Banking System

Build a console-based Banking System using OOP, Collections, and Exception Handling.

By TechCoder TeamLast updated: 2026-06-02
In a Nutshell

Build a console-based Banking System using OOP, Collections, and Exception Handling. This hands-on tutorial focuses on practical implementation of capstone: banking system concepts.

Capstone: Banking System

Welcome to the specific final project! You will build a simplified Banking System.

Requirements

  1. User can create an account (Name, Account Number).
  2. Deposit Money.
  3. Withdraw Money (Check for insufficient funds).
  4. Transfer Money between accounts.
  5. View Transaction History.

Architecture

  • Class BankAccount:
    • Fields: accountNumber, balance, customerName, transactions.
    • Methods: deposit(), withdraw().
  • Class Bank:
    • Stores HashMap<String, BankAccount>.
    • Methods: addAccount(), getAccount().
  • Main Class:
    • Menu loop (Scanner) to accept user input.

Starter Code

Here is the blueprint to get you started.

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Challenge Extensions

  1. Add Persistence: Save accounts to a file.
  2. Add Security: Add a PIN code for withdrawals.
  3. Use Interfaces: Create an Account interface and implement SavingsAccount (with interest) and CurrentAccount (with overdraft).

Congratulations! You have completed the Java Course. Now go build amazing things! 🚀