2 posts tagged with "oop"

In Part 1, we learned why Spring Data JPA repositories must be interfaces. Now let's understand the fundamental difference between classes and interfaces in Java, and when to use each.

In Parts 1 and 2, we learned what interfaces are and when to use them. Now let's dive deep into the OOP principles that make interfaces essential for large-scale applications. This isn't about avoiding code duplication—it's about fundamental software design.