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Founder & operator of a programming school. I love solving dev issues and deep-diving into performance optimization across languages. I write in-depth articles for complex challenges.

Japan Joined on Jan 19, 2026 https://code-izumi.com/

Education

Computer Science & Information Technology Background

Pronouns

mahiro

Work

Founder & Operator of a Programming School

ライフポータル

Feb 3

Java Naming Conventions: The Definitive Guide for Class Names and Best Practices

#java #programming

3 min read

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Feb 2

Mastering Python Substrings: Guide to Extract, Check, Search, and Replace

#python #programming

3 min read

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Feb 1

Java Infinite Loops: How to Create, Stop, and Debug (while and for Loops)

#java #programming

3 min read

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Jan 31

PHP Memory Management: How to Monitor Usage, Peaks, and Limits

#php #programming

3 min read

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Jan 30

Python for Loops with Index: Mastering the enumerate() Function

#python #programming

3 min read

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Jan 29

PHP Associative Arrays: Mastering array_keys, foreach, and Search Functions

#php

3 min read

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Jan 28

Python String Manipulation: Every Way to Delete Specific Characters

#python

3 min read

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Jan 26

Java Decompilation Guide: How to Recover Source Code in VS Code, Eclipse, and Beyond

#java

3 min read

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Jan 23

Python Logistic Regression: A Practical Guide with scikit-learn and statsmodels (p-values, Odds Ratios, and ROC)

#python

4 min read

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Jan 22

Python Static Typing: Prevent Bugs with Type Hints and mypy

#python #programming #mypy

3 min read

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Jan 20

Python Batch Processing: From .bat Integration to Subprocess Best Practices

#python #programming

4 min read

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Jan 19

Why is Java Reflection "Forbidden"? Disadvantages and the Right Use Cases

4 min read

DEV Community

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Java Naming Conventions: The Definitive Guide for Class Names and Best Practices

Mastering Python Substrings: Guide to Extract, Check, Search, and Replace

Java Infinite Loops: How to Create, Stop, and Debug (while and for Loops)

PHP Memory Management: How to Monitor Usage, Peaks, and Limits

Python for Loops with Index: Mastering the enumerate() Function

PHP Associative Arrays: Mastering array_keys, foreach, and Search Functions

Python String Manipulation: Every Way to Delete Specific Characters

Java Decompilation Guide: How to Recover Source Code in VS Code, Eclipse, and Beyond

Python Logistic Regression: A Practical Guide with scikit-learn and statsmodels (p-values, Odds Ratios, and ROC)

Python Static Typing: Prevent Bugs with Type Hints and mypy

Python Batch Processing: From .bat Integration to Subprocess Best Practices

Why is Java Reflection "Forbidden"? Disadvantages and the Right Use Cases