Task Manager in Multiple Languages

A comprehensive task management application implemented across multiple programming languages, demonstrating cross-language data sharing and different programming approaches.

Overview

This project implements a task manager application with command-line interfaces in multiple languages:

• Python (CLI + GUI)
• C++ (CLI)
• C (CLI)
• Java (CLI)
• C# (CLI)

Features

• Task Management (Add, Delete, Complete)
• Priority Levels (High/Medium/Low)
• Deadline Management
• Activity History
• Completion Tracking
• Cross-Language JSON Data Compatibility
• Signal Handling (Ctrl+C)
• Standardized Exit Signatures

Project Structure

Task-Manager-in-Multiple-Languages/
├── Python/# Python implementation:                  
│   ├── task_manager_gui.py    # GUI version
│   ├── task_manager_cli.py    # CLI version
│   └── README.md              # Python documentation
├── C++/ # C++ implementation:                      
│   ├── json.hpp               # JSON library
│   ├── task_manager_cli.cpp    
│   └── README.md              # C++ documentation
├── C/   # C implementation:                 
│   ├── cJSON.h                # JSON library header
│   ├── cJSON.c                # JSON library source
│   ├── task_manager_cli.c     
│   ├── task_manager_cli.h     
│   └── README.md              # C documentation
├── Java/ # Java implementation:                  
│   ├── task_manager_cli.java  
│   ├── lib/gson-2.10.1.jar    # JSON library for Java
│   └── README.md              # Java documentation
├── C#/   # Csharp implementation:                  
│   ├── task_manager_cli.cs
│   ├── task_manager_cli.csproj      
│   └── README.md              # C# documentation
├── .vscode/# VS Code configuration:                  
│   ├── launch.json
│   ├── tasks.json
│   └── settings.json
├── data/  # Shared data directory:                 
│   └── DB_task_manager.json
└── README.md                  # Project overview

Data Storage & Compatibility

All implementations share a common JSON data format stored in data/DB_task_manager.json, enabling seamless cross-language compatibility. Each version can:

• Read and write to the shared JSON file
• Track activity history across all versions
• Maintain consistent data structures
• Handle tasks created by other language versions

Implementation Details

• Cross-platform compatibility (Windows, Linux, MacOS)
• Consistent JSON data format across all languages
• Activity history tracking between all versions
• Robust file validation and error handling
• Exit signature tracking system
• Standardized date format (DD-MM-YYYY)
• Memory management appropriate for each language
• Signal handling for graceful exits

JSON Libraries Used

• Python: Built-in json module
• C++: nlohmann/json
• C: cJSON
• Java: Gson
• C#: Newtonsoft.Json

Building and Running:

Using VS Code

The project includes pre-configured launch.json and tasks.json files to simplify compilation and debugging across all language versions. Simply open the project in VS Code and use the provided build and debug tasks.

Manual Build

Each language implementation includes its own README with specific build instructions:

• Python: Requires Python 3.x
• C++: Requires C++17 compiler
• C: Requires C11 compiler
• Java: Requires JDK 17+ and Gson
• C#: Requires .NET SDK 7.0+

Author

Created by Hananel Sabag