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Walkthrough - Kotlin Coding Conventions: Backing Properties

Walkthrough - Kotlin Coding Conventions: Backing Properties

In this lesson, we focused on the specific Kotlin coding convention for naming Backing Properties. This is a common pattern used to preserve encapsulation while providing a public read-only view of mutable internal state.

Changes Made

Implementation

  • Created BackingProperties.kt which implements:
    • Inventory Class: Uses the underscore prefix convention (_items) for the private mutable list and a public read-only property (items) for the API.
    • Demonstration: Shows how the public API prevents external modifications while the internal logic remains flexible.
  • Updated App.java to execute the convention demonstration.

Verification

  • Build: Successfully executed ./gradlew :app:assemble.
  • Logic: Verified that the naming follows the official Kotlin Style Guide and correctly implements the encapsulation pattern.

See the Step-by-Step Explanation for technical details.

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