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Alexander Obregon @AlexCodes47

Software Engineer, passionate about programming, writes about code to deepen understanding. Committed to staying up-to-date, helping others improve.

Joined February 2022
  • Tweets 102
  • Following 8
  • Followers 71
2 Photos and videos
Spring Boot 4.0 is here! If you’re curious about what changed, I made a breakdown: medium.com/p/whats-new-in-sp… #SpringBoot #Java #Backend #Programming
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I just posted about blocking brute-force logins in Spring Boot with short-term tracking and filters. Works with IPs, Redis, and plays well with modern config. #SpringBoot #JavaDev #APISecurity #Java #Programming medium.com/p/tracking-failed…
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Here's my latest article on how Java handles object casting during execution, Check it out! open.substack.com/pub/alexan… #Java #JVM #JavaDevelopment #JavaTips #Coding #SoftwareEngineering #Bytecode #Programming #LearnToCode
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I put together a quick walkthrough of how JavaScript keeps track of what is running using execution contexts and the call stack. Check it out: open.substack.com/pub/alexan… #Javascript #Coding #WebDevelopment #WebDev #Programming #LearnToCode
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Part 2 of my Java scope series is up! This one covers how methods, fields, and "this" really work. open.substack.com/pub/alexan… #Java #LearnJava #LearnToCode #Coding #Programming #SoftwareDevelopment
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Wrote something on how Java handles scope inside methods, blocks, braces, and the stuff that can trip you up early on. It’s up on my new Substack: open.substack.com/pub/alexan… #Java #LearnToCode #Coding #Programming #SoftwareDevelopment
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Wrote a article on how JavaScript handles hoisting, and why some things work before they’re even defined. medium.com/p/javascript-hois… #JavaScript #Coding #WebDevelopment #Programming #LearnToCode
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Just wrote a quick breakdown on how JavaScript finds properties using the prototype chain. Some behind-the-scenes stuff that’s easy to miss. #JavaScript #WebDevelopment #Coding #LearnToCode medium.com/p/javascript-prot…
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I recently wrote about solving Capitalize the Title on LeetCode with four Java solutions—step-by-step breakdowns and complexity analysis. Check it out! #Java #LeetCode #Coding #Programming #SoftwareEngineering #LearnToCode link.medium.com/qzabxBAcWQb

Solving the ‘Capitalize the Title’ Problem on LeetCode — Java Solutions Walkthrough

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Improve your Java skills with my article on multi-dimensional arrays "Understanding Multi-Dimensional Arrays in Java" link.medium.com/4zxvQOt1INb #programming #coding #LearnToCode #Java #Developers

Understanding Multi-Dimensional Arrays in Java

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Explore #Multithreading in C ! Check out my latest article for a guide on std::thread, synchronization tools, and best practices for thread-safe programming. #CPP #cplusplus #Concurrency #programming link.medium.com/PhMh2eHBuJb

Concurrency and Multithreading in C

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Improve your app's security with my latest guide on two-factor authentication methods in Spring Boot! Compare SMS, email, and more to find the best fit for your project. 🚀 link.medium.com/5HeDHFLYpJb #SpringBoot #Security #2fa #2factorauthetification #TechGuide #Java

Comparing Two-Factor Authentication Methods in Spring Boot

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Improve your Spring Boot app's security! Explore how to implement TOTP-based 2FA using the java-otp library. Learn step-by-step from setup to user authentication and secure your application now. 🚀 link.medium.com/pbfm3zeooJb #springboot #security #Java

Implementing TOTP-Based Two-Factor Authentication in Spring Boot

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Alexander Obregon retweeted
Software Testing Weekly 🚀@QANewsletter
4 May 2024
Hey! 🙂 The 218th issue is out! softwaretestingweekly.com/is… Congrats @Sensei_Bas, @TChenska, @alanpage, @adenhuen, @AlexCodes47, @RazvanVancea, @mindfultester, @hugs, @Nikolay_A00 and @dnlkntt! #SoftwareTesting #QA
Software Testing Weekly — Issue 218: Unit, Integration and End-to-End Tests

ALT Software Testing Weekly — Issue 218: Unit, Integration and End-to-End Tests

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Looking to refine your application's logging in Spring Boot? Take a look at my latest article on improving logging with Logback, from basic setups to advanced configurations. #springboot #Logback #Java #devops #Java link.medium.com/THDEFOM6YIb

How to Improve Application Logging in Spring Boot with Logback

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Check out my article: Java for Beginners-Understanding Break and Continue Statements!✨ link.medium.com/q9UbaVLH4Hb #Coding #programming #Java

Java for Beginners — Understanding Break and Continue

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Take a look at my latest article 'Beginner’s Guide to Java Constructors'. Whether you're new to Java or brushing up on basics, this guide has something for you link.medium.com/eJ3c6kfyMHb #Java #programming #LearnToCode

Beginner’s Guide to Java Constructors

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Take a look at my new guide 'Beginner’s Guide to Java Output/Print' - a straightforward, example-packed introduction for those new to Java or programming. Perfect for anyone looking to understand the basics of Java output methods! link.medium.com/oHcJ4oiLHHb #Java #LearnToCode

Beginner’s Guide to Java Output/Print

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Check out my latest article: 'Beginner’s Guide to Java Syntax' - a simple, straightforward journey into the world of #Java programming for beginners! link.medium.com/RNMWOSRaEHb #coding #programming #LearnToCode

Beginner’s Guide to Java Syntax

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🚀 Excited to share my latest article 'A Beginner’s Guide to Java Class Attributes' - a journey from the basics to mastering class attributes in #Java programming. Perfect for beginners! link.medium.com/N7fQabxzzHb #programming #LearnToCode

A Beginner’s Guide to Java Class Attributes

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