Browse categories
Explore
Fiverr Pro
English
$
USD
Looks Like This Service Is On Hold
I will write clean java code, jdbc, and gui application
Lifeng
About this gig
**Need help with your Java assignment? You've found the right expert.**
I'm a Java developer with 30 years of experience (since 2000). I specialize in **pure Java, JDBC, and desktop GUI applications** no unnecessary frameworks, just clean, readable code.
**What I can do for you:**
**Java Basics** OOP, data structures, algorithms, multithreading, exception handling
**JDBC** Connect to MySQL / SQLite, perform CRUD operations, handle transactions
**Java GUI** Swing , windows, event listeners, data binding, complete desktop apps
**Debugging** Find and fix bugs in your existing Java code quickly
**Code Review** Professional feedback to improve your code quality
**Tutoring** Explain Java concepts step by step for your exam or project
**Why choose me over other sellers?**
30 YEARS OF EXPERIENCE I've been writing Java since JDK 1.2. You're learning from a seasoned professional.
PURE JAVA FOCUS I don't overcomplicate things with heavy frameworks. My code is simple, educational, and easy to understand.
STUDENT-FRIENDLY I provide detailed comments and am happy to explain anything you don't understand.
FAST TURNAROUND Most small to medium assignment
Get to know Lifeng
Lifeng
Professional Java Developer 30 Years Experience Clean Code, JDBC, GUI
- FromChina
- Member sinceApr 2026
- Avg. response time1 hour
Languages
Chinese, English
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 (
FAQ
Can you explain the code you write?
Absolutely. Every important line will have a comment. After delivery, you can ask me any questions – I'll explain until you fully understand.
My assignment is due tomorrow. Can you help?
Message me before ordering. If my schedule allows, I can do urgent delivery with the extra fast add‑on.
Do you directly submit my assignment for me?
No. I provide **tutoring, sample code, and guidance**. You will learn from the code and explanations I give. Please follow your school's academic honesty rules.
What database systems do you support for JDBC?
MySQL, PostgreSQL, SQLite, Microsoft SQL Server, Oracle – just let me know which one you need.
I'm a beginner. Will your code be too advanced for me?
Not at all. I write clean, well‑structured code that follows standard Java conventions. It's designed to be readable for students. And I'm happy to walk you through it.
