Sthapatiq Solutions’ Post

#DAY65 #100DaysOFCode | Java Full Stack Development #Day65 of my #100DaysOfCode – Java 🔹 PriorityQueue in Java 📘 Introduction: A PriorityQueue in Java is a special type of queue where elements are processed based on their priority rather than the order they are added (FIFO). The element with the highest priority (or lowest value by default) is served first. 🧩 Package: java.util.PriorityQueue ⚙️ Key Features: It does not allow null values. Duplicate elements are allowed. Elements are ordered according to their natural ordering or by a custom comparator. It is not thread-safe. For thread-safe implementation, use PriorityBlockingQueue. Based on a min-heap data structure (the smallest element has the highest priority). 🧠 Syntax: PriorityQueue<Type> pq = new PriorityQueue<>(); 🧰 Example: import java.util.PriorityQueue; public class Main { public static void main(String[] args) { PriorityQueue<Integer> pq = new PriorityQueue<>(); pq.add(25); pq.add(10); pq.add(30); System.out.println("PriorityQueue: " + pq); System.out.println("Head element: " + pq.peek()); // smallest element pq.poll(); // removes head element System.out.println("After removal: " + pq); } } 🖥️ Output: PriorityQueue: [10, 25, 30] Head element: 10 After removal: [25, 30] 💡 Use Cases: Task scheduling (e.g., CPU jobs based on priority) Dijkstra’s shortest path algorithm Huffman coding Event-driven simulations A big thanks to my mentor Gurugubelli Vijaya Kumar Sir and the 10000 Coders for constantly guiding me and helping me build a strong foundation in programming concepts. #Java #Coding #Programming #100DaysOfCode #Java #programming #CodeNewbie #LearnToCode #Developer #Tech #ProgrammingTips #JavaDeveloper #CodeDaily #DataStructures #CodingLife

☕ Day 13 of my “Java from Scratch” Series – “Unary Operators in Java” Unary operators are the ones that work on a single operand (variable). They’re used to change the sign, increase/decrease a value, or reverse a boolean condition. 1️⃣ +a 2️⃣ -a → if a = 5, -a will be -5 3️⃣ ! → if a = true, !a will be false 4️⃣ Increment operator (++) → increases the value by 1. a. Post increment: first the operation will be performed and then the value will be increased. 📘 Example: int a = 20; int b = a++; ✅ Result: b = 20, a = 21 b. Pre increment: first the value will be increased and then the operation will be performed. 📘 Example: int a = 20; int b = ++a; ✅ Result: a = 21, b = 21 5️⃣ Decrement operator (--) → decreases the value by 1. a. Post decrement: first the operation will be performed and then the value will be decremented. 📘 Example: int a = 20; int b = a--; ✅ Result: b = 20, a = 19 b. Pre decrement: first the value will be decremented and then the operation will be performed. 📘 Example: int a = 20; int b = --a; ✅ Result: a = 19, b = 19 💡 In short: Unary operators act on one operand to either change its value or its sign. 👉 Which one do you find tricky — pre or post increment? Comment below 👇 #Java #Programming #Coding #Tech #JavaDeveloper #SoftwareEngineering #Learning #Developers #UnaryOperatorsInJava #JavaFromScratch #NeverGiveUp

Ever wondered how the JVM actually runs your Java code? It’s not magic, it’s class loading. Behind every java app lies a beautiful process where the JVM loads, verifies, and links your classes before a single line executes. In my latest article, I unpack how the Bootstrap, Platform, and Application ClassLoaders work together. #Java #JVM #Programming #SoftwareEngineering #Coding #Developers #JavaDevelopers #TechEducation #BackendDevelopment #SoftwareArchitecture

#DAY50 #100DaysOFCode | Java Full Stack Development #Day50 of my #100DaysOfCode – Java Topic->ArrayList In java Definition: ArrayList is a resizable array in Java that can grow or shrink in size dynamically. It is part of the java.util package and implements the List interface. Type: Class Package: java.util Introduced in: JDK 1.2 Implements: List, RandomAccess, Cloneable, Serializable Key Characteristics Stores elements in an ordered sequence (insertion order maintained). Allows duplicate elements. Allows null values. Dynamic resizing – increases size automatically when needed. Provides fast random access using indexes. Not synchronized (not thread-safe). Advantages Dynamic size management. Easy element access using index. Maintains insertion order. Disadvantages Slower for insertions or deletions in the middle. Not synchronized by default. A big thanks to my mentor Gurugubelli Vijaya Kumar Sir and the 10000 Coders for constantly guiding me and helping me build a strong foundation in programming concepts. #Java #Coding #Programming #100DaysOfCode #JavaProgramming #CodeNewbie #LearnToCode #Developer #Tech #ProgrammingTips #JavaDeveloper #CodeDaily #DataStructures #CodingLife

☕ Day 11 of my “Java from Scratch” Series – "Assignment Operators in Java". In Java, Assignment Operators are used to assign values to variables. We can assign values directly or perform operations and assign them in short form. 1. 🔹 = (Simple Assignment) Assigns a value to a variable. 📘 Example: int a = 5; int b = a; Here, the value 5 is assigned to a, and the value of a is assigned to b. 2. 🔹 += (Add and Assign) Short way to write a = a + value 📘 Example: int a = 3; a += 3; ✅ Result: a = 3 + 3 => a = 6 3. 🔹 -= (Subtract and Assign) Short way to write a = a - value 📘 Example: int a = 10; a -= 3; ✅ Result: a = 10 - 3 => a = 7 4. 🔹 *= (Multiply and Assign) Short way to write a = a * value 📘 Example: int a = 10; a *= 3; ✅ Result: a = 10 * 3 => a = 30 5. 🔹 /= (Divide and Assign) Short way to write a = a / value 📘 Example: int a = 10; a /= 5; ✅ Result: a = 10 / 5 => a = 2 (Quotient) 6. 🔹 %= (Modulo and Assign) Short way to write a = a % value 📘 Example: int a = 10; a %= 5; ✅ Result: a = 10 % 5 => a = 0 (Remainder) 💡 In short: Assignment operators make your code cleaner, shorter, and easier to read. 👉 Which assignment operator do you use most often in your code? Comment below! 👇 #Java #Programming #Coding #JavaDeveloper #Learning #SoftwareEngineering #JavaFromScratch #InterviewQuestions #Developers #AssignmentOperatorsInJava #Tech #NeverGiveUp

⚙️ Java Multithreading: Run Multiple Tasks at the Same Time Multithreading is what gives Java the power to handle multiple operations concurrently making your applications faster, more responsive, and efficient. Here’s what you’ll learn in this guide: 🧠 What Is Multithreading? → Learn how multiple threads share memory but execute independently for improved performance. 💡 Creating Threads (2 Ways) → Extend the Thread class or implement the Runnable interface — both lead to parallel execution. 🚀 Starting Threads → Always use start() to launch a new thread; calling run() directly won’t create concurrency. 🔄 Thread Lifecycle → Understand thread states — New, Runnable, Running, Waiting, and Terminated. ⚙️ Key Thread Methods → Control execution using sleep(), join(), isAlive(), and setPriority(). 🔐 Synchronization → Prevent race conditions by locking shared resources with the synchronized keyword. 📈 Benefits of Multithreading → Maximize CPU usage, handle I/O and computation together, and deliver high-performing apps. 🎯 Interview Prep → Master differences between Thread vs Runnable, and key methods like join() and synchronized. 📌 Like, Save & Follow CRIO.DO for more advanced Java lessons made simple. 💻 Learn Java by Doing, Not Just Watching At CRIO.DO, you’ll master multithreading, synchronization, and concurrency by building real backend systems from scratch. 🚀 Join your FREE trial today - https://lnkd.in/e5UETdzC and start coding projects that perform like pros! #Java #Multithreading #CrioDo #LearnCoding #SoftwareDevelopment #Concurrency #BackendEngineering #JavaThreads #OOP #JavaInterview

☕ Day 17 of my “Java from Scratch” Series — “Switch Statement in Java” Switch statements work just like if-else statements, but they are used when we have multiple conditions to check. 🔹 Syntax: switch (expression) { case expression1: statement; break; case expression2: statement; break; default: statement; } 📘 Example: switch(2) { case 1: System.out.println("1"); break; case 2: System.out.println("2"); break; default: System.out.println("3"); } ✅ Result: 2 ⚠️ Important Points: 1. We must use break after each case. If we don’t, the next cases will also execute (this is called fall-through). 2. We don’t need break for the default case since it is the last case. 3. Even if default is written in between, it will be executed only if no cases match, but then we should use break. 5. Keeping default at last is the best practice ✅ 🚫 What Switch does not accept: 1. boolean values 2. logical operators (&&, ||, !) 3. nested case statements #Java #Programming #Coding #SoftwareDeveloper #JavaFromScratch #Learning #SoftwareEngineering #Developers #Tech #SwitchCaseInJava #NeverGiveUp

Exceptions are the fire alarms of your Java code. Some demand action (checked), others just warn you (unchecked). But knowing which is which, and how to design your own exception hierarchy, can be the difference between clean, reliable code and a debugging nightmare. In this article, I break down the difference between checked & unchecked exceptions, when to use each and how to design exceptions that make your codebase stronger and clearer. #Java #Programming #SoftwareEngineering #ErrorHandling #CodeQuality #Developers #BackendDevelopment #CleanCode #ExceptionHandling

Java Inheritance is like being born into a family of superheroes! 🦸♀️ The Parent Class (Superclass) defines the core powers (like fly() and makeSound()). The Child Class (Subclass) automatically gets those powers, then adds its own awesome unique abilities (like the special attack()). It's the ultimate trick for code reuse and keeping your object hierarchy clean and logical. What's your favorite OOP principle? #Java #Inheritance #OOP #CodingHumor #SoftwareDevelopment