java-kanban

A lightweight, pure Java task tracker app implementing a kanban-style workflow.

Features

Core Functionality

• Task Management:
  • Create, update, and delete tasks
  • Track task status
  • Manage task duration and timelines
• Epic/Subtask System:
  • Create complex tasks (epics) composed of smaller subtasks
  • Automatic calculation of epic timelines based on subtasks
• History Tracking:
  • View recently accessed tasks
• Priority System:
  • Tasks sorted by start time using TreeSet with custom comparator

Storage Options

• In-Memory Storage: Fast runtime storage
• File-Based Storage: Persistent storage to file

REST API

• HTTP endpoints for basic operations (GET/POST/DELETE)
• JSON serialization using Gson with custom converters

Getting Started

Prerequisites

• Java 21 or later
• Maven 3.9 or later
• Git 2.34.1 or later

Clone the Repository

git clone https://github.com/DawydowGerman/java-kanban.git

cd java-kanban

Build with Maven

mvn clean package

Run the Application

• Option A: Run directly with Maven

  mvn exec:java -Dexec.mainClass="ru.practicum.kanban.Main"

• Option B: Run from built JAR

  java -jar target/kanban-1.0-SNAPSHOT.jar