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Lifeng
@renlifeng
Professional Java Developer 30 Years Experience Clean Code, JDBC, GUI
China
Chinese, English
About me
Java expert with 30 years (since JDK 1.2). Pure Java, JDBC (MySQL/PostgreSQL/SQLite), desktop GUI (Swing/JavaFX). I teach you to think like a developer – not just finish homework.
Services: coding, debugging, code review, tutoring. Clean code with comments.
Why me: 30y experience, fast reply (<12 hour), patient teaching.
Note: for tutoring & learning support only. I provide examples & explanations. Please follow your school's integrity policy.
Skills
Lifeng
Offline •
Average response time: 1 hour
See my services
Desktop Applications
I will write clean java code, jdbc, and gui application
