What are the best practices for using the builder pattern in software design?

What are the best practices for using the builder pattern in software design?

The builder pattern is great for constructing complex objects. Best practices include using a fluent interface, ensuring immutability, and separating the construction process from the representation.

Can you explain what a fluent interface is?

A fluent interface allows method chaining, making the code more readable. For example, instead of calling methods separately, you can chain them like this: builder.setName('John').setAge(30).build();.

What are some common mistakes to avoid when implementing the builder pattern?

Common mistakes include overcomplicating the builder, not making the object immutable, and failing to provide a clear API for the builder.

How does the builder pattern compare to the factory pattern?

The builder pattern focuses on constructing a complex object step by step, while the factory pattern is about creating objects without specifying the exact class of the object that will be created.