Intermediate Programming Project In This Project You Will Im

Intermediateprogrammingprojectinthisprojectyouwillimplementan

Implement an in-memory student information system in Java. Create a class that stores student attributes: id (integer), name (string), surname (string), and gpa (double). These attributes should be private and accessible only through getter and setter methods. Include constructors and helper methods to assign and retrieve attribute values.

Develop a main class with a menu-driven interface offering the following options:

• 1: Add new student
• 2: List all students
• 3: Delete student by name
• 4: Search student by name
• 5: Update GPA of a student
• 0: Quit

For adding a student, prompt for id, name, surname, and gpa. When listing students, display all stored students with their details. To delete or search by name, prompt for the student name and perform the respective operation, displaying the student's information accordingly. For deletion, confirm before removing. To update GPA, prompt for the student name and the new GPA, then update the record.

Store student objects in an ArrayList and perform operations such as add, delete, search, and sort. Additionally, implement a feature to sort students by name as a bonus.

Paper For Above instruction

The development of an in-memory student information system in Java provides an effective way to manage student data dynamically within an application without persistent storage. This system emphasizes object-oriented programming principles, encapsulation, and collection handling to facilitate various operations such as addition, deletion, searching, updating, and sorting of student records.

The core component of this system is the Student class, which encapsulates the student attributes: id, name, surname, and gpa. These attributes are declared as private, enforcing encapsulation. The class provides public getter and setter methods for each attribute, ensuring controlled access and modification. Additionally, constructors are implemented to initialize student objects, catering to different usage scenarios, including default and parameterized construction.

This approach ensures data integrity and flexibility. For example, the setName(String s) method allows changing the student’s name post-creation, promoting encapsulation and data validation if needed. The class design adheres to best practices in object-oriented programming, providing clear interfaces for external classes to interact with student data while safeguarding internal states.

The main class acts as the user interface, implementing a menu-driven system that allows interaction with the student collection. It employs a static ArrayList to store multiple student objects, facilitating dynamic data management. The menu provides options for adding students, which involves prompting the user for student details, creating a new Student object, and inserting it into the list; listing all students, which iterates through the list and displays each student’s data; deleting students by name, which involves searching the list and removing matching entries; searching for students by name; updating a student’s GPA; and an additional feature to sort students by their names.

Handling these operations requires standard collection processing techniques, including iteration, conditional checks, and sorting. For sorting students by name, the system leverages Java’s Collections.sort() method with a custom comparator that compares student names, ensuring an ordered list based on names to enhance usability.

The approach emphasizes user-friendly prompts and clear output formatting, making interactions intuitive. For example, when listing students, the system displays each student's ID, name, surname, and GPA in a formatted manner, separated by lines. Deletion and search functions confirm actions with users, reducing errors and ensuring accurate operations.

This system can be further extended by including additional features such as saving the data to disk for persistence, implementing input validation for robustness, or integrating graphical user interfaces for improved user experience. Nonetheless, the current implementation effectively demonstrates fundamental concepts of object-oriented programming, collection manipulation, and menu-driven application design.

In conclusion, this Java-based student information system encapsulates core programming skills such as class design, collection processing, and user interaction through menus. Its modular structure facilitates further enhancements, making it an educational tool for understanding fundamental programming concepts and practical application development.

References

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