Caching is a powerful technique used to improve application performance by storing the results of expensive operations. Spring provides a simple and flexible caching abstraction through annotations, allowing developers to easily integra…

The @Profile annotation in Spring Framework allows you to control which Spring beans are loaded into the application context based on the active environment profile. This is particularly useful when you want to define different configuratio…

Rest API Annotations in Java: A Comprehensive Guide In the world of Java web development, building robust and scalable RESTful APIs has become a standard practice. Spring Boot, one of the most popular …

Stream API Fundamentals Stream API The Stream API introduced in Java 8. Powerful feature for processing collections of data in a functional and declarative way. It does not store data; it…

Integration testing MockMvc is used in integration testing of Spring Boot applications to test HTTP endpoints in a simulated servlet environment. It allows you to: Test the entire request-handling layer, including controllers, fi…

Functional Interfaces in Java A functional interface has exactly one abstract method. It should be annotated with @FunctionalInterface. Some common functional interfaces in the java.util.function package ar…

Dependency Injection Dependency Injection (DI) is a design pattern used in software development to achieve Inversion of Control (IoC) between classes and their dependencies. Instead of a class creating its own …