Understanding Static Variables in Java with Employee Class Example

Today, I worked on a simple yet fundamental Java program to determine the largest among three numbers entered by the user. KEY POINTS ‣Package & Class Definition ‣User Input Handling ‣Decision Making (Conditional Logic) ‣Comparison Operators ‣Output ‣Resource Management ‣Simplicity and Readability Here is the code snippet!👇 #Java #LearningToCode #Practice #Buildinpublic #JavaDevelopment

#Corejava #Linkedin #interrviewpractices #simpleanswer What is public static void main(String[] args)? Ans: public: Means the method is visible everyone. static: Means it belongs to the class, not to objects. void: Means it doesn't return anything. main: Means it starting point of every java programs-it's where the programs begins running. (String[] args): It's used to take input from the command line. In short: public: Accessible by JVM. static: No object needed. void: No return value main: Every programs as start main method (String[] args): Command-line input

Feels Good To Be Back!! Today, I wrote a simple Java program that takes a character input and checks whether it’s a vowel or consonant. It’s a small yet fundamental logic-building exercise that strengthens understanding of conditional statements, character handling, and Scanner input in Java. KEY POINTS ‣User Input Handling: ‣Character Normalization: ‣Conditional Logic: ‣Logical OR Operator: ‣Input Validation Concept (optional to add): ‣Efficient and Simple Design: ‣Resource Management: Here is the code snippet!👇 #Java #LearningToCode #Practice #Buildinpublic #JavaDevelopment

🎯 Using @Qualifier in Spring When multiple beans of the same type exist, @Qualifier helps specify which bean should be injected. It works hand-in-hand with @Autowired to resolve dependency conflicts. This ensures clear control over which implementation is wired into the application. 🎛️ #SpringFramework #SpringBoot #Java #Qualifier #DependencyInjection #SoftwareDevelopment

🧠 Pattern Matching for instanceof — The Smallest Change with the Biggest Impact ⚡ We’ve all written code like this 👇 if (obj instanceof String) { String s = (String) obj; System.out.println(s.toUpperCase()); } Looks fine, right? But… do we really need that extra type cast? 🤔 --- 💡 Enter Pattern Matching (Java 16+) Now Java lets you do this: if (obj instanceof String s) { System.out.println(s.toUpperCase()); } No manual casting. No extra line. Just clean, modern, and type-safe ✅ --- 🚀 Why It’s a Game Changer ✨ Reduces boilerplate and improves readability 🔒 Avoids accidental ClassCastException #Java #Java17 #CleanCode #SoftwareEngineering #BackendDevelopment #CodeQuality #ModernJava

🧩 Day 20: Java Collections – Map Interface 🔹 Topics Covered: 1. Introduction to Map Interface Unlike List and Set, a Map stores data as key–value pairs. Each key is unique, but values can be duplicated. Common methods: put(), get(), remove(), containsKey(), containsValue(), keySet(), values(), entrySet()

Learn how to use Quarkus’s new Java Flight Recorder integration to analyze runtime behavior, performance, and version metadata. All with zero code changes. https://buff.ly/XR8WqfE

The Subtle Trap of Optional in Java 💭 Optional was meant to prevent NullPointerException but misuse can make code worse! ❌ Returning Optional from setters ❌ Using Optional fields in entities ❌ Serializing Optional with Jackson (it’ll break your JSON mapping) ✅ Correct use: Method return types to signal absence of value. Example: Optional<User> user = userRepository.findByEmail(email); user.ifPresent(System.out::println); 💭 Have you seen Optional abused in your codebase? #Java #CleanCode #BestPractices

How Java Works — Explained in One Simple Diagram! Ever wondered how your Java code turns into a running program? This simple visual breaks it down step-by-step 👇 1️⃣ Write your code (.java file) 2️⃣ Compile it using javac 3️⃣ Get the Bytecode (.class file) 4️⃣ JVM executes it to produce output The power of Java lies in its platform independence — write once, run anywhere! 🌍 #Java #Programming #Developer #Coding #SoftwareEngineering #LearnJava #JavaDeveloper #TechEducation #JavaProgramming #TechCommunity #CodeNewbie #100DaysOfCode #DeveloperLife #ProgrammingBasics #BackendDevelopment #LearnToCode #CodingJourney #SoftwareDevelopment yogesh.sonkar.in@gmail.com

#Day-68) LeetCode #3228 – Maximum Number of Operations to Move Ones to the End (Java Edition) Tackled this neat string problem using a greedy approach in Java. The challenge? Move '1's to the end of the string under specific movement rules, maximizing the number of valid operations. 🧠 Core Idea: Track how many '0's we've seen and how many '1's we've already moved. Only move a '1' if there's enough '0's to justify it and the next character is also '1'. 💻 Java Strategy: Loop through the string Use counters to manage '0's and '1's Let me know how you'd tweak this or if you see a more optimal path! #Java #LeetCode #GreedyAlgorithm #StringProblems #DSA #CodingChallenge #LinkedInTech #ProblemSolving