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Dev Cookies

Passionate developer crafting code and stories for a tech-infused world. Join me on the journey of innovation and growth.

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🚀 Designing Idempotent APIs in Spring Boot
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🚀 Designing Idempotent APIs in Spring Boot

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2 min read

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🧼 Code Smells: What They Are, Why They Matter, and How to Fix Them
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🧼 Code Smells: What They Are, Why They Matter, and How to Fix Them

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3 min read
🚀 Crack Coding Interviews with These Must-Know Patterns
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🚀 Crack Coding Interviews with These Must-Know Patterns

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Comprehensive Guide to Popular Design Patterns in Java🧩💻
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Comprehensive Guide to Popular Design Patterns in Java🧩💻

#designpatter #javadesignpattern
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4 min read
📝 Day Ten: Strategy Design Pattern in Java
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📝 Day Ten: Strategy Design Pattern in Java

#designpatterns #system #systemdesign #java
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📝 Day Nine: State Design Pattern in Java
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📝 Day Nine: State Design Pattern in Java

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📝 Day Eight: Chain of Responsibility Design Pattern in Java
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📝 Day Eight: Chain of Responsibility Design Pattern in Java

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📝 Day Seven: Facade Design Pattern in Java
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📝 Day Seven: Facade Design Pattern in Java

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📝 Day Six: Adapter Design Pattern in Java
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📝 Day Six: Adapter Design Pattern in Java

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📝 Day Five: Strategy Design Pattern in Java
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📝 Day Five: Strategy Design Pattern in Java

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📝 Day Four: Decorator Design Pattern in Java
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📝 Day Four: Decorator Design Pattern in Java

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📝 Day Three: Singleton Design Pattern in Java
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📝 Day Three: Singleton Design Pattern in Java

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📝 Day Two: Builder Design Pattern in Java
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📝 Day Two: Builder Design Pattern in Java

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📝 Day One: Factory Design Pattern in Java
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📝 Day One: Factory Design Pattern in Java

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🚀 Master DSA Patterns to Ace Coding Interviews!
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🚀 Master DSA Patterns to Ace Coding Interviews!

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4 min read
💡 Mastering Dynamic Programming: Patterns and Techniques
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💡 Mastering Dynamic Programming: Patterns and Techniques

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5 min read
🧩 Understanding Backtracking with Java Code Examples
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🧩 Understanding Backtracking with Java Code Examples

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🌐 Understanding Matrix Traversal with Java Code Examples
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🌐 Understanding Matrix Traversal with Java Code Examples

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🌐 Understanding Breadth-First Search (BFS) with Java Code Examples
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🌐 Understanding Breadth-First Search (BFS) with Java Code Examples

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🔍 Understanding Depth-First Search (DFS) with Java Code Examples
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🔍 Understanding Depth-First Search (DFS) with Java Code Examples

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🌳 Mastering Binary Tree Traversal (with Java Code Examples)
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🌳 Mastering Binary Tree Traversal (with Java Code Examples)

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🔍 Mastering the Binary Search Pattern (with Java Code Examples)
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🔍 Mastering the Binary Search Pattern (with Java Code Examples)

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🔁 Mastering the Overlapping Intervals Pattern in Coding Interviews (with Java)
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🔁 Mastering the Overlapping Intervals Pattern in Coding Interviews (with Java)

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3 min read
🚀 Mastering the Top ‘K’ Elements Pattern – With Java Code
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🚀 Mastering the Top ‘K’ Elements Pattern – With Java Code

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🔁 Linked List In-Place Reversal in Java – A Step-by-Step Guide
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🔁 Linked List In-Place Reversal in Java – A Step-by-Step Guide

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🐢🐇 Fast and Slow Pointers in Java – The Ultimate Guide
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🐢🐇 Fast and Slow Pointers in Java – The Ultimate Guide

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🔍 Sliding Window Technique in Java – The Ultimate Guide 🚪
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🔍 Sliding Window Technique in Java – The Ultimate Guide 🚪

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🏃‍♂️🏃‍♀️ Two Pointer Technique in Java – The Ultimate Guide with Examples
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🏃‍♂️🏃‍♀️ Two Pointer Technique in Java – The Ultimate Guide with Examples

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🧮 Mastering Prefix Sum in Java – The Ultimate Guide with Real Examples
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🧮 Mastering Prefix Sum in Java – The Ultimate Guide with Real Examples

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🧱 Mastering the Monotonic Stack Pattern in Java – With Real-World Examples
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🧱 Mastering the Monotonic Stack Pattern in Java – With Real-World Examples

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3 min read
🌐 IaaS, PaaS, BaaS, FaaS, CaaS Explained: The Cloud Execution Models You Must Know in 2025 🚀
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🌐 IaaS, PaaS, BaaS, FaaS, CaaS Explained: The Cloud Execution Models You Must Know in 2025 🚀

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2 min read
🧠 What is the Temporal Dead Zone?
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🧠 What is the Temporal Dead Zone?

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🔮 What is Hoisting?
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🔮 What is Hoisting?

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🌟 What is a Promise in JavaScript?
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🌟 What is a Promise in JavaScript?

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1 min read
✅ Throttling is commonly used for rate limiting – both on the frontend (UI) and backend (API)
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✅ Throttling is commonly used for rate limiting – both on the frontend (UI) and backend (API)

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🧠 What is Debouncing
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🧠 What is Debouncing

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⚔️ Throttling vs Debouncing
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⚔️ Throttling vs Debouncing

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Important Design Patterns Every Developer Should Know
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Important Design Patterns Every Developer Should Know

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📘User Management REST API Documentation
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📘User Management REST API Documentation

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HLD vs LLD: The Ultimate System Design Interview Preparation Guide (2025)
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HLD vs LLD: The Ultimate System Design Interview Preparation Guide (2025)

5
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Mastering JavaScript: The Ultimate Interview Preparation Guide for 2025
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Mastering JavaScript: The Ultimate Interview Preparation Guide for 2025

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Mastering Java: The Ultimate Interview Preparation Guide for 2025
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Mastering Java: The Ultimate Interview Preparation Guide for 2025

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⚡ Mastering Axios in JavaScript — GET, POST, PUT, PATCH, DELETE (With Examples)
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⚡ Mastering Axios in JavaScript — GET, POST, PUT, PATCH, DELETE (With Examples)

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3 min read
🚀 Mastering the Fetch API in JavaScript — GET, POST, PUT, PATCH, DELETE (With Examples)
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🚀 Mastering the Fetch API in JavaScript — GET, POST, PUT, PATCH, DELETE (With Examples)

4
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🚀 How to Fetch API Using Axios in JavaScript (With Code Examples)
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🚀 How to Fetch API Using Axios in JavaScript (With Code Examples)

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🔐 OAuth 1.0 Explained: How the Auth Server Knows the User
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🔐 OAuth 1.0 Explained: How the Auth Server Knows the User

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🔐 How OAuth 2.0 Authorization Flow Works (Explained for Developers)
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🔐 How OAuth 2.0 Authorization Flow Works (Explained for Developers)

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4 min read
🔐 Securing Your Spring Boot Application: JWT, OAuth 1.0, OAuth 2.0, and OpenID Connect Explained with Code
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🔐 Securing Your Spring Boot Application: JWT, OAuth 1.0, OAuth 2.0, and OpenID Connect Explained with Code

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Load Balancer vs. Reverse Proxy vs. API Gateway: Understanding the Differences
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Load Balancer vs. Reverse Proxy vs. API Gateway: Understanding the Differences

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🧩 What Is Spring Boot Actuator?
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🧩 What Is Spring Boot Actuator?

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What is Hardware Upgradation?
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What is Hardware Upgradation?

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Must-Know Algorithms for System Design Interviews: A Comprehensive Guide
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Must-Know Algorithms for System Design Interviews: A Comprehensive Guide

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11 min read
Networking Essentials for System Design Interviews 🌐
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Networking Essentials for System Design Interviews 🌐

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8 min read
10 Must-Read White Papers for Every Software Engineer
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10 Must-Read White Papers for Every Software Engineer

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4 min read
Must Know Sorting Algorithms
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Must Know Sorting Algorithms

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Mastering `EXPLAIN ANALYZE` in MySQL: Optimize Your Queries Like a Pro!
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Mastering `EXPLAIN ANALYZE` in MySQL: Optimize Your Queries Like a Pro!

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Solving the N+1 Query Problem in Hibernate & JPA
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Solving the N+1 Query Problem in Hibernate & JPA

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REST API URL Structure: Best Practices with Spring Boot Example
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REST API URL Structure: Best Practices with Spring Boot Example

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Mastering the Art of Software Architecture: A Comprehensive Guide
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Mastering the Art of Software Architecture: A Comprehensive Guide

1
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6 min read
Ultimate Kotlin Cheatsheet
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Ultimate Kotlin Cheatsheet

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9 min read
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