Java Methods and Recursion Explained

Day 50 – Understanding Java Execution & ClassLoader ☕ Today I revised how a Java program is executed and the role of the ClassLoader in JVM. Topics covered: 🔹 How Java code is compiled into bytecode (.class files) 🔹 How JVM executes the bytecode 🔹 Role of the ClassLoader in loading .class files 🔹 How class files are brought into the JVM memory (code segment) Understanding how the ClassLoader loads classes and how JVM processes them gave me deeper insight into Java’s internal working. This helped me move beyond just writing code to understanding how Java runs behind the scenes 🚀 #Day50 #JavaJourney #JVM #ClassLoader #CoreJava #Consistency

Today I learned a simple difference in Java: ArrayList and Vector both store data in a dynamic way. But, ArrayList → faster, not thread-safe Vector → slower, thread-safe That’s it. Small concept, but important to understand when to use what. #java #learning #dsa

🚀 Exploring Method Reference in Java Learned how method references provide a cleaner and more readable way to refer to methods using :: instead of lambda expressions. Used different types like static method reference, instance method reference, and constructor reference. 💻 #Java #Java8 #MethodReference #FunctionalProgramming #CodingJourney

Key Features in the Last 4 LTS Releases of Java This infographic highlights major features across Java 8, 11, 17, 21, and 22: - Java 8: Lambda, Stream API, Date/Time API, Optional class - Java 11: HTTP Client, var in lambdas, String improvements - Java 17: Sealed classes, Records, Pattern Matching, Enhanced Switch - Java 21: Virtual Threads, Sequenced Collections, Pattern Matching for switch - Java 22: Unnamed Variables, Streams for Primitives, Statements before super() This serves as a quick reference for Java developers to track language evolution across LTS versions. #Java #JavaDeveloper #Java8 #Java11 #Java17 #Java21 #Java22 #LTS #Programming #SoftwareDevelopment #BackendDevelopment #SpringBoot #CodeNewbie #100DaysOfCode #TechEducation #LearnJava #JavaProgramming #OpenJDK #VirtualThreads #LambdaExpressions #LinkedInTech

💻 Day 2 — Strengthening Java Fundamentals Continuing my journey, today I focused on building a deeper understanding of Core Java concepts. 📌 What I worked on: - Control flow (if-else, nested conditions) - Loops (for, while) with better clarity - Practiced basic problems to support my understanding One thing I’m intentionally focusing on right now is understanding concepts more deeply rather than just writing code. I’ve realized that strong fundamentals and clear logic are far more important in the long run than rushing into solving problems without clarity. Each small concept is helping me think more logically and approach problems in a better way. Staying consistent and focusing on fundamentals. #Java #LearningInPublic #SoftwareDevelopment #DSA #Consistency #100DaysOfCode

Quick PDF covering key features of Java 8, 17 & 21 📌 Includes Streams, Lambdas, Records, Virtual Threads & more. #Java #Java8 #Java17 #Java21 #InterviewPrep

🚀 Day 1 – Strengthening Java Fundamentals Starting with something simple but powerful: How Java Works Behind the Scenes When we write a Java program, it doesn’t directly run on the machine. Instead: 👉 Java code → compiled into Bytecode 👉 Bytecode → executed by the JVM (Java Virtual Machine) Why this matters? Because this is what makes Java platform independent — “Write Once, Run Anywhere.” Also, JVM doesn’t just run code — it handles: ✔ Memory Management (Garbage Collection) ✔ Security ✔ Performance optimization Understanding this foundation helps in writing better, optimized applications—especially when working with frameworks like Spring Boot. #Java #BackendDevelopment #LearningInPublic #JVM #SoftwareEngineering

Leetcode Practice - 12. Integer to Roman The program is solved using JAVA We store values in descending order 👉 Then: Loop through values If number ≥ value → append symbol Subtract value Repeat #LeetCode #Java #StringHandling #CodingPractice #ProblemSolving #DSA #DeveloperJourney #TechLearning

”Clojure is one of the few production quality, serious JVM languages that isn't just 'Let's do Java better.'” -- Brian Goetz

Today I focused on understanding the core architecture of Java: JVM, JRE, and JDK using W3Schools and GeeksforGeeks. Key learnings: • JDK (Java Development Kit) → Used to develop Java programs • JRE (Java Runtime Environment) → Provides environment to run Java programs • JVM (Java Virtual Machine) → Executes Java bytecode Important concept I understood today: 👉 Java code is first compiled into bytecode, then JVM executes it on any system. This is what makes Java platform independent 💡 Slowly building strong fundamentals step by step 🚀 #Java #CodingJourney #LearningInPublic #GeeksforGeeks #W3Schools