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Simple Banking System (Java)

A simple desktop-based banking system built using Java and Swing (JOptionPane).
This project demonstrates core programming concepts such as arrays, methods, input validation, and basic banking operations.

Features

  • Create a new bank account
  • Auto-generate account numbers (ACC001, ACC002, ...)
  • Deposit money into an account
  • Withdraw money with balance validation
  • Check account details and balance
  • Flexible account search:
    • Account number (ACC001)
    • Short format (A1 / a1)
    • Numeric input (1)
    • Account holder name (full or partial)

Technologies Used

  • Java
  • Swing (JOptionPane)
  • Core Java (Arrays, Methods, Control Flow)

How It Works

The system stores account data using parallel arrays:

  • accountNumbers[]
  • accountNames[]
  • balances[]

Each account shares the same index across these arrays.

The program runs in a loop displaying a menu where the user can choose different banking operations.