Module Four Assignment Guidelines And Rubric Overview 061342

Module Four Assignment Guidelines And Rubrichtmloverviewnearly Every

Overview Nearly every Java application involves multiple classes. For this assignment, you will work on a Dog application composed of three classes. The Dog and Corgi classes have been started for you; you will complete these classes and create the Driver class from scratch. The application will be used to collect and print details about specific dogs. As you can see from the UML class diagram on this page, the Corgi class (child/subclass) inherits from the Dog class (parent/superclass).

In the Corgi class file definition, the “extends” keyword is used to establish that it inherits from the Dog class. Prompt For this assignment, you will complete the Dog application by completing the Dog and Corgi classes and creating a Driver class. Use the Uploading Files to Eclipse and the Downloading Files From Eclipse tutorials to help you with this project. Open the Virtual Lab by clicking on the link in the Virtual Lab Access module. Then open your IDE and upload the DogApp.zip folder containing the Dog and Corgi class files.

You will be creating a Driver class in the same project folder. When you upload the files, you will see errors due to the classes being incomplete. As you complete each class, any errors should resolve. Complete the Dog class: Using the UML Class diagram to the right, declare the class variables. A text version is available: UML Class Diagram Text Version.

Create a constructor that incorporates the type, breed, and name variables (do not include topTrick). Note: The type refers to what the breed typically does; for example, a corgi would be a “cattle herding dog.” A Shiba Inu would be a “hunting dog.” Create the setTopTrick() mutator method. Complete the Corgi class: Using the UML Class diagram, declare the class variables. Create the two mutator methods for the class variables. Make sure to select the Project folder, then add a new class. Name it the Driver class, then create the code: There should be no class variables. The main() method will be the only method in the class. Write three lines of code in the main() method: Instantiate a corgi object using the below syntax: className objectName = new className(input parameters). TIP: Refer to the constructors in the Dog and Corgi classes to ensure the input parameters are correct. Use the objectName.setTopTrick() method to set a top trick for the dog you created. Embed the objectName.toString() method in a statement that outputs to the console window.

Once you have completed the code for the Dog and Corgi classes and created a Driver class, right-click the Project folder and select Run As, then Java Application. You should see output in the Console window that resembles the sample below. Your results will vary based on your input values. Sample Output DOG DATA Java is a Pembroke Welsh Corgi, a cattle herding dog. The top trick is: ringing the bell to go outside. The Corgi is 5 years old and weighs 38 pounds.

Paper For Above instruction

The task at hand involves developing a Java application that models different dog breeds through class hierarchies, primarily focusing on a Dog class and a Corgi subclass, with an accompanying Driver class to test the implementation. This project aims to reinforce understanding of object-oriented programming principles such as inheritance, encapsulation, and polymorphism through practical application.

Design and Completion of the Dog Class:

The Dog class serves as the superclass that encapsulates shared attributes common to all dogs. According to the provided UML diagram, essential class variables include type, breed, name, and topTrick, with the first three being initialized through the constructor while the topTrick remains modifiable via a mutator method. The class should include a constructor that accepts parameters for type, breed, and name, but excludes topTrick during instantiation.

Furthermore, the Dog class must have a mutator method, setTopTrick(String trick), allowing clients to assign a special trick to a dog object. The toString() method should generate a comprehensive string representation of the dog’s information, including all attributes, formatted for clarity.

Development of the Corgi Subclass:

The Corgi class extends Dog, inheriting existing attributes and behaviors. Additional properties specific to Corgis include weight and age, which should be declared as class variables within Corgi. The constructor for Corgi must invoke the superclass constructor with the appropriate parameters and initialize its own specific variables.

Moreover, the Corgi class should provide mutator methods for weight and age, following standard naming conventions (setWeight(int pounds) and setAge(int years)). The toString() method in Corgi overrides the superclass method to append information on the dog’s age and weight.

Implementation of the Driver Class:

The Driver class functions as the test harness. It contains only a main() method to execute the program. Within main(), instantiate a Corgi object with meaningful data such as type, breed, name, weight, and age. Utilize the setTopTrick() method to assign a trick to this Corgi. Finally, invoke the toString() method on the Corgi object and output the resulting string to the console.

This simple test demonstrates object creation, attribute modification, and the string representation of objects, validating the correct functionality of all implemented classes.

Execution and Expected Output:

When the program runs, it produces output that describes the dog's details, including breed, type, age, weight, and top trick. For consistence with the sample output, ensure that the string formats align, particularly within the toString() methods.

Conclusion:

This exercise emphasizes core OOP concepts in Java—specifically class inheritance and method overriding—by modeling real-world entities. Proper implementation of constructors, mutators, and toString() methods is critical for creating extensible, readable, and functional code. The completed application not only fulfills the assignment requirements but also demonstrates how inheritance structures can effectively organize related data.

References

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• Gosling, J., Joy, B., & Steele, G. (2014). The Java Language Specification. Addison-Wesley.
• Elmasri, R., & Navathe, S. B. (2015). Fundamentals of Database Systems. Pearson.
• Head First Java by Kathy Sierra and Bert Bates, O'Reilly Media, 2003.
• Bloch, J. (2018). Effective Java. Addison-Wesley.
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• Sun Microsystems. (2004). The Java Tutorials. https://docs.oracle.com/javase/tutorial/