Interface Filter Strategy: Applying the Strategy Pattern

💡 Overview

This project serves as a hands-on demonstration of Object-Oriented Programming (OOP) principles in Java, specifically utilizing interfaces to implement various filtering strategies. The core objective is to create distinct, reusable filtering logic that can be applied to different data types (Strings and Rectangles) via a common Filter interface.

🎯 Learning Outcomes

This lab fulfills the following learning objectives:

1. Demonstrate the creation and implementation of interfaces in Java.
2. Apply the Strategy Pattern by allowing the main program to switch between filtering behaviors at runtime.
3. Design and implement specific filtering logic for different data types.
4. Understand the benefits of loose coupling and flexible code architecture.

🛠️ Implementation Details

Interfaces Created

Interface Name	Description
ShortWordFilter	Implements the provided Filter interface to identify and filter out String objects that are below a defined minimum length.
BigRectangleFilter	Implements the provided Filter interface to identify and filter out Rectangle objects that exceed a defined size or area threshold.

Core Components

Component	Responsibility
Driver Program	The main execution class. Responsible for instantiating the data sets (e.g., list of words, list of rectangles) and demonstrating the use of both the ShortWordFilter and BigRectangleFilter.
Filter Interface	(Provided) The base interface that defines the required method signature for all filtering strategies.

Execution

The Driver program applies the custom filters sequentially:

1. Creates a list of sample String objects.
2. Applies the ShortWordFilter.
3. Prints the filtered list (only long words remain).
4. Creates a list of sample Rectangle objects.
5. Applies the BigRectangleFilter.
6. Prints the filtered list (only small/medium rectangles remain).

📊 UML Diagrams

UML diagrams for all created interfaces and classes (ShortWordFilter, BigRectangleFilter, Driver class).