I will help you with java programming, oop and fix your java code


About this gig
Stuck on a tricky Java bug, NullPointerException, OOP concept, or algorithm problem?
I will help you debug, fix, and write clean, object-oriented Java code with clear explanations and best practices.
PROBLEMS I RESOLVE IN JAVA:
Bug Fixing: NullPointerExceptions, syntax/compilation errors, and logic bugs.
Object-Oriented Programming (OOP): Inheritance, Polymorphism, Interfaces, and Abstract Classes.
Data Structures: ArrayList, LinkedList, HashMap, HashSet, Stack, Queue, Binary Trees.
Algorithms: Sorting, Searching, Recursion, and Graph traversal.
File I/O, Exception Handling, Multi-threading, and Collections API.
Unit Testing: JUnit test suite writing and validation.
WHAT YOU RECEIVE:
Working, fully tested Java source code.
Clear comments explaining how the code works and how the bug was fixed.
Fast delivery following standard Java conventions.
️ NOTE:
Please attach your .java files and project instructions when submitting requirements!
Get to know Lino J.
Software Developer
- FromMexico
- Member sinceOct 2020
- Avg. response time1 hour
- Last deliveryabout 5 hours
Languages
English, Spanish
FAQ
What information do you need to start?
I need a clear description of the problem, the relevant Java source files, the expected behavior, and any error messages or exceptions. Please contact me before ordering so I can review the scope.
Do I need to contact you before ordering?
Yes, please always contact me first. This ensures I can deliver high quality and that the project fits the scope of the chosen package.
Do you work with frameworks like Spring or Android?
No. This gig focuses on core Java concepts only. Framework-based projects require a separate discussion and custom offer.
Do you help with academic assignments?
I can help explain concepts, fix issues, and guide you through Java problems so you can understand your code better. Please contact me first to discuss the scope and requirements.
