Here’s a comprehensive, categorized summary table of key Spring annotations used across all major areas of the Spring ecosystem — including core, dependency injection, web, data (JPA), AOP, configuration, security, testing, and bootstrapping. ✅ Spring Annotations Summary Table (All Areas) Category Annotation Purpose 🔧 Core / Component Scanning @Component Generic Spring-managed component @Service Business/service layer…
Java Tests
In Java testing (especially with JUnit and Mockito), annotations are used to mark test methods, configure lifecycle events, inject mocks, and more. Here’s a comprehensive list of commonly used annotations in Java tests: ✅ JUnit Annotations ▶️ Core Test Annotations Annotation Purpose Example @Test Marks a method as a test @Test void testAddition() { ……
Java operators
Operators Precedence postfix expr++ expr– unary ++expr –expr +expr -expr ~ ! multiplicative * / % additive + – shift << >> >>> relational < > <= >= instanceof equality == != bitwise AND & bitwise exclusive OR ^ bitwise inclusive OR | logical AND && logical OR || ternary ? : assignment = += -= *= /= %= &=…
Java versions
Released Versions Upcoming Versions (Tentative): https://medium.com/@chandantechie/comprehensive-list-of-java-versions-with-key-features-and-upcoming-releases-54be35646cca
Java Oracle Licenses
I Oracle has significantly changed the Java licensing model over the years. Here’s a summary of the key changes: 2019 Changes:Oracle announced that updates to Oracle Java JDK 8 would require a subscription from patch 211 onwards.They introduced a new Java licensing agreement, the Java OTN SE, which forbids all commercial usage.The old BCLA agreement…