Roughly 67% of Java developers choose Spring Boot for their web development projects.💛 #CtrlPlusCode #Java

@Bean vs @Component in Spring.❤️‍🔥 @Component — You own the class, just annotate it and Spring auto-detects it via classpath scanning. @Bean — You don't own the class, so you manually instantiate and register it inside a @Configuration class. #CtrlPlusCode #Java #Coding

Optional Class: In Java 8, the Optional<T> class was introduced in java.util to help avoid NullPointerException and make code more readable when dealing with values that may or may not be present💛 #CtrlPlusCode #Java #Coding

❤️‍🔥Stream vs Parallel Stream in Java: ->Sequential Stream A sequential stream processes elements one at a time on a single thread. ->Parallel Stream A parallel stream splits the data into multiple sub-streams and processes them concurrently across multiple CPU cores. #CtrlPlusCode

Setter Injection in SPRING. When to use: -> Dependency is truly optional (required = false) -> Circular dependency workaround (rare) -> Reconfiguring bean after initialization #CtrlPlusCode #Java #Spring

Constructors Injection in SPRING. Why it's best: -> Fields can be final — immutable, thread-safe -> Easy to unit test — just new OrderService(mockPayment, mockNotif) -> Dependencies are explicit and visible #CtrlPlusCode #Java #Spring

Here is the Example for Field Injection. 💛 Problems: -> Can't make field final — no immutability -> Hard to unit test — can't inject mock via constructor -> Hides dependencies — not clear from outside what class needs #CtrlPlusCode #Java

Here is a simple @java Code to Prove 99^100 is the largest. 💛 #CtrlPlusCode #Java

Three Types of Autowiring in Spring: 1. Field Injection ❌ (Not Recommended) 2. Constructor Injection ✅ (Recommended) 3. Setter Injection ⚠️ (Use Only for Optional Dependencies) #CtrlPlusCode #Java #Coding

REQUEST MAPPING 💛 @RequestMapping("/api/users") ← applies to ALL methods below @GetMapping("/{id}") → GET /api/users/{id} @PostMapping → POST /api/users @PutMapping("/{id}") → PUT /api/users/{id} @DeleteMapping("/{id}") // → DELETE /api/users/{id} #CtrlPlusCode #Java

Dependency Injection (DI) in Spring Boot is a design pattern where an object's dependencies are provided by an external source (the Spring IoC container) rather than the object creating them itself. 🔥 #CtrlPlusCode #Java #developer

In the Spring Framework, IoC (Inversion of Control) is a core design principle where the responsibility of managing object lifecycles and dependencies is transferred from the developer to the framework.💛 #CtrlPlusCode #Java #developer

What is Spring Framework: The Spring Framework is an open-source, modular Java platform designed to simplify the development of complex enterprise applications. Core Concepts IoC & Dependency Injection, Aspect-Oriented Programming (AOP), Modular Architecture. #CtrlPlusCode

I had an excellent experience learning the fundamentals of Android development over the past seven days. 💛 #CtrlPlusCode @kotlin @Android

#Day7: Exploring @kotlin with simple example (Expenses Tracker) @intellijidea #CtrlPlusCode #android

#Day6: Started building a neo-brutalism style calculator with @AndroidStudio (xml files) and parallel learning jetpack compose. @kotlin @Android #CtrlPlusCode

#Day5: Learning Jetpack from @plcoding (Philipp Lackner) very clearly explained. @kotlin #LearningTogether #CtrlPlusCode

#Day4: Looking for Perfect material on jetpack compose🔍 @kotlin @AndroidStudio #CtrlPlusCode

#Day2: Simple Kotlin program to understand classes and objects.😘 @kotlin #CtrlPlusCode #Android

#Day2: Simple Kotlin Program to understand the basics of array, loops, function. 💛 @kotlin #CtrlPlusCode #android