Java wait() Method: Synchronization and Thread Communication

🚀 For Loop Example (Java) The `for` loop is used to execute a block of code a specific number of times. It consists of three parts: initialization, condition, and increment/decrement. The initialization initializes a loop counter variable. The condition is evaluated before each iteration, and the loop continues as long as the condition is true. The increment/decrement updates the loop counter after each iteration. This structure makes the `for` loop ideal for iterating over arrays or performing tasks a fixed number of times. #Java #JavaDev #OOP #Backend #professional #career #development

🚀 The while Loop (Java) The 'while' loop repeatedly executes a block of code as long as a specified boolean condition is true. The condition is checked before each iteration. If the condition is initially false, the loop body is never executed. It's crucial to ensure that the condition eventually becomes false to avoid an infinite loop. 'while' loops are useful for iterating an unknown number of times. #Java #JavaDev #OOP #Backend #professional #career #development

🚀 The Enhanced for Loop (for-each) (Java) The enhanced 'for' loop, also known as the 'for-each' loop, provides a simplified way to iterate over arrays and collections. It automatically iterates through each element in the collection without requiring explicit index management. This makes the code more readable and less prone to errors. However, it doesn't provide access to the index of the current element. #Java #JavaDev #OOP #Backend #professional #career #development

🚀 Accessing Class Information using Reflection (Java) Reflection allows you to retrieve information about a class, such as its name, modifiers, fields, methods, and constructors. The `Class` object is the entry point for reflection operations. You can obtain a `Class` object by calling `getClass()` on an object instance or using `Class.forName(String className)`. This information can then be used to dynamically create instances, invoke methods, and access fields. #Java #JavaDev #OOP #Backend #professional #career #development

🚀 Day 13/30 – Real-World Java Development   Today I looked into something we use a lot but don’t always think about — working with strings.   In many cases, we keep modifying strings again and again. But I found that using "String" repeatedly creates new objects every time, which can affect performance.   Tried using "StringBuilder" instead, and it felt more efficient for cases where multiple modifications are involved.   Small difference, but in real applications where data keeps changing, this can make an impact.   Trying to be more mindful about such choices 👍   #30DaysChallenge #Java #BackendDevelopment #LearningJourney #SoftwareEngineering  

🚀 Java just got a massive upgrade… and most developers are not talking about it. 👉 Virtual Threads (Java 21) Traditionally: Handling multiple requests = heavy threads + high memory ❌ Now with Virtual Threads: ✔ Lightweight threads ✔ Handle thousands of requests ✔ Better performance with less resources --- 💡 What this means: • Faster backend systems • Better scalability • Improved microservices performance --- 📌 Example: Thread.startVirtualThread(() -> { System.out.println("Hello from Virtual Thread"); }); --- Java is evolving faster than most people think. --- 💬 Do you think Java can compete with Node.js in scalability now? #Java #BackendDevelopment #Programming #SoftwareEngineering #JavaDeveloper

🚀 Observer Pattern Example (Java) This example demonstrates the Observer pattern. The `Subject` class maintains a list of `Observer` objects and notifies them when its state changes. The `ConcreteObserver` class implements the `Observer` interface and updates its state when notified by the `Subject`. The `Subject` and `Observer` classes are loosely coupled, meaning that they can be changed independently of each other. This promotes flexibility and maintainability. Learn more on our app: https://lnkd.in/gefySfsc #Java #JavaDev #OOP #Backend #professional #career #development

Learnt about multi threading in Java, making a thread, runnable interface, starting/pausing/interrupting/joining it. Concurrency issues when modifying a shared resource : race condition/ visibility issue. Solutions to race condition and visibility issue : confinement, locks, synchronize, volatile, etc. Multi threading is a feature that utilizes a CPU with multiple cores to create efficient software, think about downloading 5 files one after another or in parallel, impact is huge #Learner #JAVA #BACKEND

🚀 Basic Serialization and Deserialization Example (Java) This code demonstrates basic object serialization and deserialization using ObjectOutputStream and ObjectInputStream. The `writeObject()` method serializes an object to a stream, while `readObject()` deserializes an object from a stream. It's essential to handle ClassNotFoundException during deserialization, as it indicates that the class definition is not available. Proper exception handling is critical for robust serialization and deserialization processes. #Java #JavaDev #OOP #Backend #professional #career #development

🚀 Generic Methods with Multiple Type Parameters (Java) Generic methods can have multiple type parameters, allowing for even greater flexibility. Each type parameter must be declared before the return type of the method. This is useful when you need to work with multiple types that are related to each other. For example, you might have a method that takes two different types of objects and returns a third type. #Java #JavaDev #OOP #Backend #professional #career #development