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  • View profile for Salman Siddiqui
    Salman Siddiqui

    🔥 DAY 17 – Cleaner Java with Streams Java Streams make collection handling elegant. Example: List<String> names = users.stream() .map(User::getName) .collect(Collectors.toList()); Why use Streams? ✔ Less boilerplate ✔ Functional style ✔ Cleaner logic But don’t overuse it for complex logic. Readable > Fancy. #Java #CleanCode

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  • View profile for Annu Singh
    Annu Singh

    📘 1. TOP 15 CORE JAVA QUESTIONS (WITH SHORT ANSWERS) 🔥 Core Java (1–15) 1. What is JVM? → Runs Java bytecode 2. JDK vs JRE → Dev vs Runtime 3. == vs equals() → Reference vs Content 4. Why String immutable? → Security + caching 5. String pool? → Memory optimization 6. OOP principles → 4 pillars 7. Encapsulation → Data hiding 8. Inheritance → Code reuse 9. Polymorphism → Many forms 10. Abstraction → Hiding complexity 11. final vs finally vs finalize 12. Exception hierarchy 13. Checked vs unchecked 14. Multithreading → concurrency 15. Synchronization → thread safety # java #Code #Java #springboot

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  • View profile for David Praneeth Tumu
    David Praneeth Tumu

    Today I revised Java Wrapper Classes and understood why they are important. Java Collections store only objects, not primitive types — so wrapper classes help convert primitives like int, double, char into objects like Integer, Double, Character. Also practiced Auto-Boxing and Auto-Unboxing, which makes conversion between primitive and object types seamless. Small concept, but very important for writing clean Java code 🚀 Saketh Kallepu Anand Kumar Buddarapu #Java #WrapperClasses #AutoBoxing #JavaCollections #LearningJourney

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  • View profile for Avinash Pingale
    Avinash Pingale

    The `main` method is the entry point of every Java application.** The JVM starts execution from: public static void main(String[] args) * `public` → accessible from anywhere * `static` → no object required to call it * `void` → does not return anything * `String[] args` → receives command-line arguments But with modern Java versions (including Java 21+ and continued in Java 25), we now have simpler ways to run programs, especially for small programs and learning purposes. You can write cleaner code using: * Simplified entry points * Implicit classes (in newer preview features) * Single-file execution However, the traditional `main` method is still the standard for production applications. — Understand the entry point. Master Java fundamentals. #Java25 #MainMethod #CoreJava JavaBasics Programming JavaDeveloper

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  • View profile for Monika Mehta
    Monika Mehta

    "Today, I wrote a simple Java program to calculate the average of an array. The program sums all the elements and then divides by the number of elements to get the average. Here is the code and the output: average = 15."

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