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Alexander Obregon Profile
Alexander Obregon

@AlexCodes47

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46
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101

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

Joined February 2022
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@AlexCodes47
Alexander Obregon
4 days
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
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@AlexCodes47
Alexander Obregon
2 months
Here's my latest article on how Java handles object casting during execution, Check it out!.#Java #JVM #JavaDevelopment #JavaTips #Coding #SoftwareEngineering #Bytecode #Programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
3 months
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: #Javascript #Coding #WebDevelopment #WebDev #Programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
3 months
Part 2 of my Java scope series is up! This one covers how methods, fields, and "this" really work. #Java #LearnJava #LearnToCode #Coding #Programming #SoftwareDevelopment
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@AlexCodes47
Alexander Obregon
3 months
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: #Java #LearnToCode #Coding #Programming #SoftwareDevelopment
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@AlexCodes47
Alexander Obregon
3 months
Wrote a article on how JavaScript handles hoisting, and why some things work before they’re even defined. #JavaScript #Coding #WebDevelopment #Programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
3 months
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
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@AlexCodes47
Alexander Obregon
5 months
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
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@AlexCodes47
Alexander Obregon
9 months
Improve your Java skills with my article on multi-dimensional arrays "Understanding Multi-Dimensional Arrays in Java" #programming #coding #LearnToCode #Java #Developers.
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@AlexCodes47
Alexander Obregon
1 year
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
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@AlexCodes47
Alexander Obregon
1 year
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. 🚀. #SpringBoot #Security #2fa #2factorauthetification #TechGuide #Java.
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@AlexCodes47
Alexander Obregon
1 year
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. 🚀.#springboot #security #Java.
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@AlexCodes47
Alexander Obregon
1 year
RT @QANewsletter: Hey! 🙂. The 218th issue is out!. Congrats @Sensei_Bas, @TChenska, @alanpage, @adenhuen, @AlexCode….
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@AlexCodes47
Alexander Obregon
1 year
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
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@AlexCodes47
Alexander Obregon
1 year
Check out my article: Java for Beginners-Understanding Break and Continue Statements!✨ #Coding #programming #Java.
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@AlexCodes47
Alexander Obregon
1 year
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 #Java #programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
1 year
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! #Java #LearnToCode.
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@AlexCodes47
Alexander Obregon
1 year
Check out my latest article: 'Beginner’s Guide to Java Syntax' - a simple, straightforward journey into the world of #Java programming for beginners! #coding #programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
1 year
🚀 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! .#programming #LearnToCode.
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@AlexCodes47
Alexander Obregon
1 year
Check out my guide on Java constructors! Unlock the secrets to initializing objects and setting the foundation for strong Java applications. Perfect for beginners and refreshers alike. #Java #programming #CodeNewbie.
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