Lab08 Lab08C++

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Cleaned assignment instructions: Write the main() function in Lab08.cpp that instantiates a PointTest object and calls its run() method. The PointTest class should be defined in PointTest.hpp and implemented in PointTest.cpp. The Point class is declared in Point.hpp and implemented in Point.cpp. The Point class represents a point in the Cartesian plane with integer coordinates and includes methods for distance calculation, movement, and string representation. Create two Point objects with user-input coordinates, display their properties and distance, then move each point to new coordinates, displaying updated properties and distances after each move. Also, include test cases to verify correctness of the Point class methods.

Paper For Above instruction

The assignment centers around developing a simple geometric class in C++ to represent points in a 2D Cartesian plane. The primary goal is to implement a Point class with attributes for the x and y coordinates, along with methods for calculating the distance between points, moving points, and converting points to a string for easy display. The design should be modular, with clear separation of class declaration and implementation, and complemented by a testing class to validate functionality through user interaction and output verification.

Firstly, the core Point class will contain private data members for the mX and mY coordinates, and public methods including a default constructor setting the point to the origin (0,0), an overloaded constructor to initialize with specific coordinates, and a destructor if needed. Accessor (getter) methods getX() and getY() will retrieve coordinate values. Mutator methods setX(), setY(), and move() will allow for modifying the point’s position. The distance() method will compute the Euclidean distance between two Point objects, utilizing sqrt() from cmath. Another method, toString(), will format the point as a string like "(x, y)".

The implementation of these functions involves straightforward logic: constructors initialize the data members, distance() calculates the Euclidean distance based on coordinate differences, and setters update the internal state. The toString() method uses stringstream for formatting output for user-friendly display.

The testing harness, PointTest, declared in PointTest.hpp and implemented in PointTest.cpp, is designed to facilitate interaction with the user. It prompts for initial coordinates of two points, constructs corresponding Point objects, displays their details and the initial distance, then moves each point to new specified coordinates, again displaying their state and the updated distance after each move. This process verifies the correctness of all methods within the Point class.

Finally, the main() function in Lab08.cpp creates an instance of PointTest and calls its run() method to execute all testing procedures. Proper #include directives and namespace usage ensure seamless integration. This structured approach emphasizes clean coding practices, modular design, and comprehensive testing to ensure reliability of the Point class functionalities.

The resulting program not only demonstrates key object-oriented programming concepts such as encapsulation and modularity, but also provides practical usage scenarios including user input, data validation, and output formatting in C++. Such design fosters maintainable, extendable code suitable for more complex geometric or graphical applications.

References

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