How to Connect Methods with Dots in Java: A Guide to Fluent API and Builder Pattern

Discover how to refactor your Java code using the `Fluent API` and `Builder Pattern`. Learn to connect methods with dots for cleaner, more readable code.
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How to Connect Methods with Dots in Java: A Guide to Fluent API and Builder Pattern

Refactoring code is an essential practice for developers looking to improve their code's readability and maintainability. In the quest to transform code into a more intuitive format, the concept of connecting methods with dots often comes into play. If you've ever wondered how to achieve this in Java, you're not alone! We’ll explain what you need and walk you through the steps to do it effectively.

The Problem: Refactoring a Fizz Buzz Implementation

Let's consider a Java implementation of the classic Fizz Buzz challenge. The original code is straightforward but needs refinement:

[[See Video to Reveal this Text or Code Snippet]]

While this works, our goal is to refactor it to allow for a more elegant chaining of methods using dot notation, like this:

[[See Video to Reveal this Text or Code Snippet]]

The Solution: Fluent API and Builder Pattern

To achieve the desired refactored design, we need to implement a Fluent API pattern alongside the Builder Pattern. This allows methods to be chained together in a readable manner.

Step 1: Create a Class for Checks

We will create a simple class, CheckTest, to check if the number is a multiple of another number and print it if true.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Using the CheckTest Class

Now, we can utilize our class to implement the cleaner Fizz Buzz logic:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion: A Cleaner Approach

By applying the Fluent API and Builder Pattern, we can express conditions and actions in a much clearer way than the original code. This results in:

Improved readability: Your code is easier to follow.

Chaining methods: You can connect multiple checks and actions in a single line.

Refactoring not only makes your code cleaner but also enhances your skills as a developer. Now when you find yourself wishing to connect methods with dots, you know exactly where to start!

Feel free to experiment with this pattern and apply it to your projects. Happy coding!