In software development, organizing project structures is more than just about cleanliness; it’s about improving maintainability, readability, and scalability. Java developers often debate between two popular approaches: "Package by Layer" and "Package by Feature." Which one is right for your project? Each method offers different benefits depending on your project’s complexity, team size, and the system architecture you are building. In this article, we’ll dive deep into both techniques, break down their pros and cons, and provide real-life examples of how to implement each.