Let’s look at how to create a module in Java using a simple example.
Imagine that you want to create a simple application to keep track of your tasks. You plan to divide it into modules for easier code management.
Now you can create classes within each module. For example, in the “core” module you can create classes to handle tasks and store data, and in the “ui” module you can create classes to display the user interface and interact with the user.
It is important to remember that within each module, you are free to use classes and resources from that module. If you need to use classes from another module, you must explicitly specify the dependency in the “module-info.java” file.
To compile and run your project, you can use the javac and java commands at the command line, specifying the path to the appropriate modules and classes.
That’s it! Your project is now divided into two modules, “core” and “ui”, each with its own functionality and dependencies. This allows you to manage your code more conveniently, share responsibilities between modules and make it easier to develop and maintain.
Don’t forget that this is just a simple example, and in real projects modules may be more complex and contain more dependencies and classes.
Modules in Java are a powerful tool for simplifying dependency management, defining code visibility and accessibility, providing module isolation, and making program code more readable and understandable. The introduction of modules allows you to create more robust, secure, and scalable applications. They help improve project organization, minimize version conflicts, and facilitate integration with other components. And understanding and using them is an important aspect for developers to create efficient and maintainable code.
