In Jgrasp, A Class That Maintains A List Of The Top 10 Perce

In Jgraspimp A Class That Maintains A List Of The Top 10 Performers In

In Jgraspimp A Class That Maintains A List Of The Top 10 Performers In in JGRASP Imp a class that maintains a list of the top 10 performers in a video game. An entry on the list consists of the score and the name, and the list is kept in descending order of scores. This is an example Jim 110 Bob 95 Harry 65 Larry 34 a class based on linked ls. This class should have a constructor that sets up an empty list, and a void insert(String n int scor) method that adds a name and a score pair to a list. The insert method puts the entry in the proper position so that the list stays sorted by score. The list should have a max size of 10.

After the list has 10 elements, an attempt to add a name with a score that is less than or equal to the minimum score on the list is ignored. Adding a score that is greater than the minimum score causes an entry with the minimum score to be dropped off the list. Test the score with a graphical user interface similar to LinkedL10. The graphical interface should support a command in the form insert name score. An example of command is "insert Pimp 111."

Paper For Above instruction

Design and Implementation of a Top 10 Performers List in Java

The development of a class that maintains a top 10 list of performers in a video game involves several core programming concepts, including data structures, object-oriented design, and graphical user interface (GUI) development. The goal is to create an efficient, dynamic, and user-friendly system that allows inserting new scores into a sorted list while maintaining only the top ten entries. This essay explores the design principles, implementation details, and testing strategies for such a system, primarily using Java as the programming language due to its extensive support for object-oriented programming and GUI development.

System Overview and Requirements

The main goal is to implement a class, perhaps named TopScoresList, which maintains a sorted linked list of entries, each containing a player's name and score. The list should always be ordered in descending order based on scores. It must support a constructor for initialization, an insert method to add new entries appropriately, and a maximum size limit of ten entries. Once the list contains ten entries, adding a new score requires comparison with the lowest score in the list. If the new score is higher, the lowest score should be replaced; otherwise, the insertion should be ignored.

Class Design and Data Structures

Given the requirements, a linked list structure is suitable for dynamic insertion and deletion. Each node in the linked list, perhaps defined as an inner class or separate class named ScoreNode, contains the name, score, and a reference to the next node. The class TopScoresList should maintain a reference to the head of the list and keep track of the current size.

Methods include:

• Constructor: Initializes an empty list.
• insert(String name, int score): Adds a new entry into the list in its correct position, maintaining the descending order. If the list exceeds size ten after insertion, the last node—the one with the lowest score—is removed. If the list already has ten entries and the new score is less than or equal to the smallest in the list, the method ignores the insertion.
• display(): Presents the current list in a readable format for testing and GUI display.

Implementation Details

The insert method checks whether the list is empty or whether the new score surpasses the head node’s score to insert at the beginning. Otherwise, it traverses the list to find the correct position. If the list length exceeds ten, the last node is discarded. To efficiently determine whether a new score qualifies for inclusion, the minimum score must be tracked or retrieved dynamically from the list’s tail.

Graphical User Interface (GUI) Component

The GUI should include a text field for command input, such as "insert Pimp 111", and a display area to show current top scores. When the user enters a command and presses a button, the system parses the command, verifies its syntax, and executes the insertion. The interface should provide real-time updates to the list display after each operation, ensuring an intuitive user experience.

Sample Implementation Outline

Based on the specifications, here is a high-level outline of the code components:

1. ScoreNode Class: Holds name, score, and reference to next node.
2. TopScoresList Class: Maintains reference to head, size, and methods for insertion and display.
3. GUICLass: Implements the graphical interface, handles command parsing, and updates display.

Conclusion

Designing a top 10 performers list requires careful consideration of data structures, list management, and user interaction. An object-oriented approach with linked lists facilitates dynamic insertions and deletions, while a GUI enhances usability. Proper handling of boundary cases, such as list capacity and score comparison, ensures robustness. This system can be extended further with data persistence or integrated with actual game score events to provide a comprehensive leaderboard solution.

References

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