Soojal Kumar
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Mar 2022 - May 2022

Banking System Simulation

Object-oriented C++ banking system with account workflows.

Banking System Simulation is a C++ console application that models bank accounts, transactions, and account-type behavior using object-oriented programming.

C++OOPBanking SimulationConsole App

Generated from project structure

OOP Class Design

Banking System Simulation C++ class diagram

Bank

BankAccount

CheckingAccount

SavingsAccount

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C++

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OOP Design

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Transactions

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Console UI

Executive Summary

Banking System Simulation is a C++ console application that models bank accounts, transactions, and account-type behavior using object-oriented programming.

Problem Statement

A banking workflow provides a practical way to model inheritance, polymorphism, encapsulation, and user interaction in C++.

What I Built

Bank class

Checking and savings accounts

Transactions

Console interface

How It Works

A conceptual workflow showing how the project moves from input to processing and output.

Step 1

User Input

Step 2

Bank Controller

Step 3

Account Object

Step 4

Transaction Logic

Step 5

Updated Balance

Architecture / System Design

A simplified system view of the major project components and how responsibilities connect.

Step 1

Console UI

Step 2

Bank Class

Step 3

Account Classes

Step 4

Transaction Methods

Step 5

Output

Technical Implementation

Classes

  • Bank
  • BankAccount
  • CheckingAccount
  • SavingsAccount

OOP Concepts

  • Inheritance
  • Polymorphism
  • Encapsulation

Operations

  • Account creation
  • Deposits and withdrawals
  • Balance updates

Interface

  • Console menu
  • User input handling
  • Readable output

Screenshots & Visuals

Real project screenshots and outputs appear first. Where a project has no existing screenshots, the visuals are grounded diagrams or output previews based on the actual project structure.

Banking System Simulation C++ class diagram
DiagramGenerated from project structure

OOP Class Diagram

Grounded class diagram showing the Bank, BankAccount, CheckingAccount, and SavingsAccount relationship used in the C++ project.

Banking System transaction console flow
OutputGenerated from project structure

Transaction Console Flow

Grounded console output preview based on the account creation, deposit, withdrawal, and balance update workflow.

Transaction Preview

create CheckingAccount #1024
deposit 250.00
withdraw 40.00
balance -> 210.00

Challenges & Solutions

Challenge

Early software projects can become procedural without clear domain modeling.

Solution

Modeled banking behavior with dedicated classes and account-type inheritance.

Challenge

Account workflows need user-friendly state changes.

Solution

Built console interactions for account creation, transactions, and updated balances.

Results / Impact

Demonstrates practical software engineering through modular structure, readable workflows, and clear technical documentation.

Shows ability to convert course and research concepts into working systems with real implementation constraints.