Java To-Do List App (Swing GUI)

A desktop-based To-Do list application built using Java Swing, designed as part of the Java Developer Internship Task 6.
This project demonstrates GUI programming, event handling, file I/O, and basic MVC-style structure.

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Features

Add new tasks with date and time
Mark tasks as completed (checkbox style toggle)
Delete individual tasks
Clear all tasks at once
Save and load tasks from tasks.txt
Light/Dark theme toggle
Auto UI refresh and persistent storage

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Tech Stack

• Language: Java 8+
• GUI Framework: Swing
• IDE Used: IntelliJ IDEA Community Edition
• Storage: Local file (tasks.txt)

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Concepts Practiced

• Swing components: JFrame, JButton, JList, JScrollPane, JPanel
• Event Handling using ActionListener and MouseAdapter
• Layout Management using BoxLayout
• File handling using BufferedWriter and Files.readAllLines
• Custom cell rendering for dynamic UI
• Theme and color management

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Screenshots

Feature	Screenshot
Main UI (Light Mode)
Dark Mode + Completed Task
Save Confirmation Popup

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