Capital Gain CLI

📌 Project Overview

This project is a Command-Line Interface (CLI) written in Java 17 to process capital gain operations.

🛠 Solution

The application reads financial transactions from the command line, processes them, and returns the results.

📌 Technologies Used

• Java Version: 17
• Libraries:
  • jackson-databind
  • junit-jupiter-api
  • junit-jupiter-engine
• Build Tool: Maven

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🚀 Build and Run the Project

🔧 Running with Java (Locally)

1. Open your command-line terminal.
2. Navigate to the project directory: Example - cd /Enviroment/workspacejava/JavaCli
3. Execute the command: mvn clean package
4. Execute the command: java -jar target/app-cli-1.jar
5. Submit cases in prompt: Example - [{"operation":"buy", "unit-cost":10.00, "quantity": 100}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}]
6. Send line empty for stop

🔧 Running with Dokcer (Locally)

1. Open your command-line terminal.
2. Navigate to the directory containing Java class files. Example: cd /Enviroment/workspacejava/JavaCli
3. Execute the command: mvn clean package
4. Execute the command: docker buildx build -t app-cli:latest .
5. Execute the command: docker run -i app-cli:latest
6. Submit cases in prompt: Example - [{"operation":"buy", "unit-cost":10.00, "quantity": 100}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}]
7. Submit line empty for stop

🔧 Running unit test (Locally)

1. Execute the command: mvn test

🔧 Test Cases

• Case 1

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 100}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}, {"operation":"sell", "unit-cost":15.00, "quantity": 50}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0}]

• Case 2

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"sell", "unit-cost":20.00, "quantity": 5000}, {"operation":"sell", "unit-cost":5.00, "quantity": 5000}]
  • result= [{"tax":0.0},{"tax":10000.0},{"tax":0.0}]

• Case 3

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"sell", "unit-cost":5.00, "quantity": 5000}, {"operation":"sell", "unit-cost":20.00, "quantity": 3000}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":1000.0}]

• Case 4

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"buy", "unit-cost":25.00, "quantity": 5000}, {"operation":"sell", "unit-cost":15.00, "quantity": 10000}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0}]

• Case 5

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"buy", "unit-cost":25.00, "quantity": 5000}, {"operation":"sell", "unit-cost":15.00, "quantity": 10000}, {"operation":"sell", "unit-cost":25.00, "quantity": 5000}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":10000.0}]

• Case 6

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"sell", "unit-cost":2.00, "quantity": 5000}, {"operation":"sell", "unit-cost":20.00, "quantity": 2000}, {"operation":"sell", "unit-cost":20.00, "quantity": 2000}, {"operation":"sell", "unit-cost":25.00, "quantity": 1000}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":3000.0}]

• Case 7

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"sell", "unit-cost":2.00, "quantity": 5000}, {"operation":"sell", "unit-cost":20.00, "quantity": 2000}, {"operation":"sell", "unit-cost":20.00, "quantity": 2000}, {"operation":"sell", "unit-cost":25.00, "quantity": 1000}, {"operation":"buy", "unit-cost":20.00, "quantity": 10000}, {"operation":"sell", "unit-cost":15.00, "quantity": 5000}, {"operation":"sell", "unit-cost":30.00, "quantity": 4350}, {"operation":"sell", "unit-cost":30.00, "quantity": 650}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":3000.0},{"tax":0.0},{"tax":0.0},{"tax":3700.0},{"tax":0.0}]

• Case 8

  • [{"operation":"buy", "unit-cost":10.00, "quantity": 10000}, {"operation":"sell", "unit-cost":50.00, "quantity": 10000}, {"operation":"buy", "unit-cost":20.00, "quantity": 10000}, {"operation":"sell", "unit-cost":50.00, "quantity": 10000}]
  • result= [{"tax":0.0},{"tax":80000.0},{"tax":0.0},{"tax":60000.0}]

• Case 9

  • [{"operation": "buy", "unit-cost": 5000.00, "quantity": 10}, {"operation": "sell", "unit-cost": 4000.00, "quantity": 5}, {"operation": "buy", "unit-cost": 15000.00, "quantity": 5}, {"operation": "buy", "unit-cost": 4000.00, "quantity": 2}, {"operation": "buy", "unit-cost": 23000.00, "quantity": 2}, {"operation": "sell", "unit-cost": 20000.00, "quantity": 1}, {"operation": "sell", "unit-cost": 12000.00, "quantity": 10}, {"operation": "sell", "unit-cost": 15000.00, "quantity": 3}]
  • result= [{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":0.0},{"tax":1000.0},{"tax":2400.0}]

🔧 Test Cases in file casefile.txt

- `Execute the command: docker run -i app-cli:latest < casefile.txt`