OBJECT-ORIENTED SOFTWARE DEVELOPMENT
This assessment item relates to the unit learning outcomes as in the unit descriptors.
This checks your understanding about object-oriented software development.
This assessment covers the following LOs.
LO1 Demonstrate understanding of classes, constructors, objects, data types and instantiation; Convert data types using wrapper methods and objects.
LO2 Independently analyse customer requirements and design object-oriented programs using scope, inheritance, and other design techniques; Create classes and objects that access variables and modifier keywords. Develop methods using parameters and return values.
LO3 Demonstrate adaptability in building control and loop structures in an object-oriented environment; Demonstrate use of user defined data structures and array manipulation.
Project: Implement a Class Hierarchy for Shapes
Design and implement a class hierarchy for shapes using Java inheritance. Your solution should include the following classes:
- A Shape class, which represents the base class for all shapes. It should have a field for the color (treat it as text) of the shape, as well as methods for calculating the area and perimeter of the shape.
- A Rectangle class, which extends the Shape class and includes additional fields for the width and height of the rectangle.
- A Circle class, which extends the Shape class and includes an additional field for the radius of the circle.
Your solution should also include a main method that demonstrates the functionality of the shape system. This should include creating five instances of the different classes, putting them into an appropriate array, calculating the area and perimeter of each shape, describing the color of each shape, and printing out the results using a loop. You should also include an UML diagram design of your classes.
Your code should be well-documented and follow Java coding conventions.
Analysis/Design/UML: State what you need to implement, methods required and UML diagram … etc.
Coding: (Paste your code here, including Shape, Rectangle, Circle and main class using Courier 10pts)
Screenshots of your output and testing:
What to submit:
Submit this Word document to LMS (you must submit the program regardless of whether it complete or incomplete, correct or incorrect)