Builder pattern

raviyasas profile image Ravi Yasas ・1 min read

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();

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.

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