Art of Coding – Page 21

Optimize SQL Queries by Profiling Execution Plans

Optimize SQL Queries by Profiling Execution Plans SQL performance tuning is a critical skill for developers and database administrators alike. Poorly optimized queries can cripple application performance, increase costs,…

Oana Rinaldi August 17, 2025

Java

Build a RESTful CRUD API in Java with Spring Boot

Build a RESTful CRUD API in Java with Spring Boot Spring Boot has become the go-to framework for building production-ready Java applications — and one of its most popular…

Oana Rinaldi August 16, 2025

Java

Java Regex Recipes: Validate Email Addresses Like a Pro

Java Regex Recipes: Validate Email Addresses Like a Pro Validating email addresses is one of the most common but deceptively complex tasks developers encounter. While it's tempting to slap…

Oana Rinaldi August 15, 2025

JavaScript

(Ab)Using CSS Variables from JavaScript Dynamically

(Ab)Using CSS Variables from JavaScript Dynamically CSS variables (also known as custom properties) are one of the most powerful additions to CSS in recent years. But when JavaScript enters…

Oana Rinaldi August 14, 2025

Shell / Bash

Stream Real-Time Logs Across Systems Using Netcat and Bash

Stream Real-Time Logs Across Systems Using Netcat and Bash Real-time log streaming is a fundamental need for many system administrators, developers, and DevOps engineers tasked with monitoring and debugging…

Oana Rinaldi August 13, 2025

Python

Using Python’s difflib to Build a Simple ‘Track Changes’ Tool

Using Python's difflib to Build a Simple ‘Track Changes’ Tool Comparison is at the heart of version control, document editing, and config management. Whether you're reviewing law contracts or…

Oana Rinaldi August 12, 2025

Python

Create Your Own URL Shortener Using Flask and SQLite

Create Your Own URL Shortener Using Flask and SQLite Creating a URL shortener from scratch is a fantastic way to strengthen your Flask and SQLite skills. In this guide,…

Oana Rinaldi August 11, 2025

JavaScript

[JS] Count Word Frequency Live as You Type (No Libraries)

[JS] Count Word Frequency Live as You Type (No Libraries) Building small utility tools in pure JavaScript is a great way to reinforce your understanding of browser APIs, DOM…

Oana Rinaldi August 10, 2025

Python

Build a Stock Tracker Email Bot in Python Using YFinance & smtplib

Build a Stock Tracker Email Bot in Python Using YFinance & smtplib Monitoring stock prices manually each day can be tedious and prone to oversight. In this tutorial, we'll…

Oana Rinaldi August 9, 2025

Java

Recursive File Search with Java: Build Your Own ‘find’ Utility

Recursive File Search with Java: Build Your Own 'find' Utility The Unix find command is a powerful tool for navigating complex directories and retrieving files based on extensions, name…

Oana Rinaldi August 8, 2025