Java Virtual Threads Simplify Concurrency with Project Loom

Hello, my connections. #Day12 of my 21-Day Java Learning Challenge Today I focused on understanding generics and wrapper classes in Java. These concepts are very useful when working with collections and help make the code more flexible and type-safe. Here’s what I learned today: • What Generics are and how they help write reusable and type-safe code • The idea of Generic classes and methods • Understanding Wrapper Classes and why Java uses them • Difference between primitive data types and wrapper objects • Concepts of Autoboxing and Unboxing Learning these topics helped me understand how Java manages different data types efficiently, especially when working with collections. Continuing to learn consistently from GeeksforGeeks and improving my Java fundamentals step by step. #Java #JavaLearning #Generics #WrapperClasses #JavaDeveloper #LearningInPublic #GeeksforGeeks #21DayChallenge

Hello, my connections. #Day11 of my 21-Day Java Learning Challenge. Today I explored the concept of multithreading in Java. I learned how Java programs can perform multiple tasks at the same time and how threads help improve the efficiency of applications. Here’s what I focused on today: • What a thread is and how it works in a program • The concept of multithreading and why it is useful • Different states in a thread lifecycle • Ways to create a thread in Java (Thread class and Runnable interface) • Important thread methods like start(), run(), sleep(), and join() • Basic idea of synchronization when multiple threads access shared resources Understanding multithreading helped me see how real-world applications handle multiple operations simultaneously. Continuing to learn step by step from GeeksforGeeks and strengthening my Java fundamentals every day. #Java #JavaLearning #Multithreading #JavaDeveloper #LearningInPublic #GeeksforGeeks #21DayChallenge

🧵 Java Multithreading — Everything you need to know in one cheat sheet! ✅ Thread Creation (extends Thread, Runnable, Callable, ExecutorService) ✅ Thread States (NEW → RUNNABLE → BLOCKED → WAITING → TERMINATED) ✅ Synchronization (synchronized, volatile, ReentrantLock) ✅ Thread Pools (Fixed, Cached, Scheduled, SingleThread) ✅ Concurrent Utils (CountDownLatch, CyclicBarrier, Semaphore, CompletableFuture) ✅ Common Issues (Deadlock, Race Condition, Starvation, Livelock) #Java #Multithreading #JavaDeveloper #Concurrency #Programming

#Day17 – Understanding Constructors in Java ⚙️ Today’s session helped me understand how constructors work in Java and how they are used while creating objects. Key Learnings: ✔ A Constructor is a special type of method whose name is the same as the class name ✔ Constructors do not have any return type, not even void ✔ Constructors are automatically called when an object is created using the new keyword ✔ If a programmer does not create any constructor, Java Compiler provides a Default Constructor ✔ Learned about Parameterized Constructors and Zero-Parameterized Constructors ✔ Understood Constructor Overloading (multiple constructors with same name but different parameters) ✔ Explored Constructor Chaining using this(), where one constructor calls another constructor within the same class TAP Academy Harshit T #Java #OOPS #CoreJava #Constructors #Programming #SoftwareDevelopment #LearningJourney #Consistency

Hello my connections, #Day14 of my 21-Day Java Learning Challenge Today I learned a few more important Java 8 concepts that help make the code cleaner and safer. Here’s what I focused on today: • Method Reference – a shorter and cleaner way to refer to methods • Optional Class – helps handle null values in a safer way • forEach() Method – makes iterating through collections easier and more readable These topics helped me understand how modern Java improves code readability and reduces unnecessary complexity. Step by step, I’m learning not just how to write Java code, but also how to write it in a better way. Continuing to learn consistently from GeeksforGeeks and strengthen my Java fundamentals every day. #Java #JavaLearning #Java8 #MethodReference #OptionalClass #forEach #JavaDeveloper #LearningInPublic #GeeksforGeeks #21DayChallenge

Day 29 -What I Learned In Day (JAVA) Today I learned about Looping Statements in Java, especially the for loop and do-while loop . 🔹 What is a Do-While Loop? A do-while loop is an exit-controlled loop that executes the code at least once, even if the condition is false. Syntax: do { // statements } while(condition); 🔹 What is a For Loop? A for loop is an entry-controlled loop that checks the condition before execution. It is mainly used when the number of iterations is known. Syntax: for(initialization; condition; increment/decrement) { // statements } Practiced 👇 #Java #Programming #Loops #LearningJourney #100DaysOfCode #CodingPractice

🚨 Understanding "Thread.sleep()" in Java Multithreading When working with multithreading, it’s Thread.sleep() only pauses the current thread for a specific time.It does NOT guarantee execution order between threads. Even if you write code like this: ➡ Start Thread 1 ➡ Pause using Thread.sleep() ➡ Start Thread 2 There is no guarantee that Thread 1 will complete before Thread 2 starts. Why? Because the JVM thread scheduler decides which thread runs first, not sleep(). ✔ Thread.sleep() → Only pauses the current thread ✔ It does NOT coordinate threads ✔ It does NOT ensure execution sequence So what should we use instead? ✅ join() – Wait for a thread to finish ✅ synchronized – Protect shared resources ✅ ReentrantLock – Advanced locking control ✅ ExecutorService – Efficient thread pool management 💡 Key takeaway:Multithreading is not just about creating threads — it's about managing thread coordination correctly. Incorrect synchronization is one of the most common causes of production bugs in concurrent systems. #Java #JavaDeveloper #JavaProgramming #JavaConcurrency #Multithreading #Spring #SpringBoot #SpringFramework #SpringBootDeveloper #BackendDevelopment #BackendDeveloper #SoftwareEngineering #Microservices #RESTAPI #APIDevelopment #JVM #JavaCommunity #Coding #Programming #TechLearning #DeveloperCommunity #100DaysOfCode

Hello, my connections. #Day13 of my 21-Day Java Learning Challenge Today I explored a few important Java 8 features that help make code more concise and easier to work with. Here’s what I focused on today: • Lambda Expressions—a shorter and cleaner way to write functions in Java • Functional Interfaces—interfaces that contain a single abstract method and work with lambda expressions • Introduction to Stream API—understanding how collections of data can be processed more efficiently Learning these concepts helped me see how modern Java makes coding more readable and efficient. Continuing to learn consistently from GeeksforGeeks and strengthening my Java fundamentals step by step. #Java #JavaLearning #Java8 #LambdaExpressions #StreamAPI #JavaDeveloper #LearningInPublic #GeeksforGeeks #21DayChallenge

Hello LinkedIn! Today I learned about Exception Handling in Java, which helps in handling runtime errors and keeping the program running smoothly. 📌 What I understood: ✅ What is an Exception ✅ Using try-catch blocks ✅ The finally block ✅ Types of Exceptions (Checked & Unchecked) ✅ Importance of handling errors in a program Exception handling helps developers write robust and reliable applications by preventing unexpected program crashes. Step by step, improving my Java fundamentals and programming skills 💻🔥 Consistency + Practice = Progress 🚀 #Java #Programming #ExceptionHandling #Coding #LearningJourney #Developer

--- 🔷 Why Inheritance is Important in Java? Inheritance is one of the core concepts of Object-Oriented Programming (OOP) in Java. It allows one class to acquire the properties and behaviors of another class using the extends keyword. 💡 Why it matters? ✅ Code Reusability – Write once, use multiple times. ✅ Method Overriding – Achieve runtime polymorphism. ✅ Better Maintainability – Cleaner and structured code. ✅ Improved Scalability – Easy to enhance existing applications. Understanding inheritance helps in building real-world, scalable, and maintainable applications. #Java #OOPS #Programming #SoftwareDevelopment #CodingJourney TAP Academy ---