Builder Design Patter
Builder is a creational design pattern that lets you construct complex objects step by step. The pattern allows you to produce different types and representa...
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Java equals and hashCode contract
Equals() method
Comparable and Comparator Interfaces
Comparable.
Spring Cache
What is Spring Cache? How to configure it in your project and how to use it? How does Spring Cache work? How to add an external provider that allows flexible...
Observer Design Patter
The observer pattern is a software design pattern in which an object, called the subject, maintains a list of its dependents, known as observers, and notifie...