ArrayList Internal Working and Java Development

Day 31- What I Learned In a Day(JAVA) Today, I learned about nested for loops and how they are used in pattern programming. A nested loop is simply a loop inside another loop. The outer loop controls the number of rows, while the inner loop controls what gets printed in each row (columns). 🔹 Outer loop → runs row by row 🔹 Inner loop → runs completely for each row 🔹 This helps in creating patterns like squares, triangles, and pyramids For every single iteration of the outer loop, the inner loop executes fully this is the key idea behind pattern problems. Understanding this concept improved my ability to break down problems step by step and visualize output clearly. I Practiced 16 Patterns 👇 #Java #Programming #Coding #LearningJourney #NestedLoops #PatternProgramming

🔁 Recursion Made Simple When a function calls itself — that’s Direct Recursion. When it calls another function that calls it back — that’s Indirect Recursion. 💡 Example: Factorial of 6 6 × 5 × 4 × 3 × 2 × 1 = 720 Base Case ➝ Stops the recursion Recursive Call ➝ Breaks problem into smaller parts Think smaller. Solve smaller. Build bigger. 🚀 #Java #Recursion #Programming #CodingLife #DataStructures #LearnToCode

ArrayList Capacity vs Size 📦 ArrayList Size vs Capacity – Not the Same! Many developers think size = capacity. 🔹 Size → Number of elements actually present 🔹 Capacity → Internal array length Example: ArrayList<String> list = new ArrayList<>(10); 👉 Size = 0 👉 Capacity = 10 When size exceeds capacity → resizing happens. ⚠ Frequent resizing = performance cost. #Java #ArrayList #CollectionsFramework #BackendDevelopment #SoftwareEngineering #JavaDeveloper #Programming #TechTips #PerformanceOptimization #day43ofJavaandSpringboot

Number Guessing Game: Built a simple Java-based game that generates a random number and challenges the user to guess it with hints like "Too High" or "Too Low". #Java #Coding #Learning

The Sliding Window Counter algorithm is the robust way to handle traffic spikes without letting bursts overwhelm your API at window boundaries. I created a complete guide on YouTube covering everything you need to know about it. Video highlights: 👉 Clear definition & workflow. 👉 Practical visual examples. 👉 Thread-safe code implementation. Level up your system design knowledge today. Watch here: https://lnkd.in/gTvjpesc #SoftwareArchitecture #Programming #TechSkills #Backend #Algorithms #SystemDesign #RateLimiting #BackendEngineering #LowLevelDesign #Concurrency #Java #InterviewPreparation #ScalableSystems #DistributedSystems #Java #Concurrency #Multithreading #SoftwareEngineering #TechLearning

The Rust programming language, with its unique typesystem, provides developers a fresh, modern experience. However, as it breaks with the mainstream object-oriented model, a lot of design patterns useful in Java or C++ doesn't work as well in Rust. On the other hand, there are patterns that are not much used in other stacks, and they make Rust shine. This series is about those patterns - we will go through the most useful Rust design patterns and idioms, learning how to make high quality codebase. Read about all of that here:  https://lnkd.in/dru5-y5p #RustLang #SoftwareEngineering #DesignPatterns #Newtype #Programming

Both ArrayList and LinkedList implement the List interface, but they behave very differently internally Use ArrayList when you need fast access and more read operations Use LinkedList when you have frequent insertions or deletions #Java #JavaCollections #ArrayList #LinkedList #DSA #Coding #Programming #SoftwareDevelopment #LearnJava #LinkedInPost

for loop example for(int i = 1; i <= 5; i++) { System.out.println(i); } while loop example int i = 1; while(i <= 5) { System.out.println(i); i++; } You can write this as your caption: 🔹 Understanding the Difference Between for Loop and while Loop Both for and while loops are used for repeating tasks in programming. ✔ for loop is best when the number of iterations is known. ✔ while loop is useful when the loop depends on a condition and the number of iterations is unknown. Choosing the right loop improves code readability and efficiency. #Java #Programming #Coding #Loops #Learning #CodeGnan

Day 13 of Programming - Array Pairs Today I explored an interesting concept in arrays: Array Pairs. In many programming problems, we often need to find pairs of elements in an array that satisfy a certain condition. Working with pairs helps improve problem-solving skills and strengthens understanding of loops and array traversal. 🔹 What are Array Pairs? Array pairs are combinations of two elements taken from an array. By comparing these pairs, we can solve various logical problems. 📌 Problems I Practiced Today: • Finding all possible pairs in an array • Finding pairs with a given sum • Finding pairs with maximum difference • Finding pairs with minimum difference • Finding duplicate pairs in an array • Counting the total number of pairs #Day13 #ProgrammingJourney #Java #Arrays #CodingPractice #ProblemSolving #LearnToCode

Day 37 Implemented a Queue using two Stacks to maintain FIFO order by transferring elements when needed. This approach ensures amortized O(1) time complexity for push, pop, and peek operations. #LeetCode #Java #DataStructures #Stack #Queue #CodingPractice #ProblemSolving #Algorithms #DSA #Programming