Builder pattern

This is another creational design pattern. Just think about the StringBuilder. If you create a StringBuilder object, you can append strings one by one to the same StringBuilder object.

    StringBuilder stringBuilder = new StringBuilder();
    stringBuilder.append("Java").append("Foundation");

This is the functionality of the builder pattern. There are a few ways to implement the builder pattern.

Using constructor

Using inner classes

This is the best approach to implement the builder pattern.

--> Find advantages, disadvantages, usages and more details about the builder pattern

Comments

[Andrii]

the most used way to implement builder nowadays is to use lombok Builder annotation
:)))

[Ravi Yasas]

Yeah. that is true.