Java Data Manipulation Function
Budget: €18 – €36 EUR
I need a concise data-manipulation function written in Java that I can plug straight into my existing codebase. The routine should take an input dataset (you can use a simple collection such as List<Map<String, Object>> for demonstration) and perform a clearly documented transformation—filtering, aggregating, or restructuring the records—so the output can be consumed by the next processing stage in my app.
Please:
• Write clean, idiomatic Java (Java 8+).
• Include inline comments that explain the key steps.
• Add a small JUnit test class that shows the function working with sample data.
I’ll drop the function into a larger project, so keep external dependencies to a minimum—only standard Java libraries or a lightweight utility like Apache Commons, if absolutely necessary.
Please:
• Write clean, idiomatic Java (Java 8+).
• Include inline comments that explain the key steps.
• Add a small JUnit test class that shows the function working with sample data.
I’ll drop the function into a larger project, so keep external dependencies to a minimum—only standard Java libraries or a lightweight utility like Apache Commons, if absolutely necessary.