UMUCCMSC 350 Project 31 Specification Design, Write, And Tes

UMUCCMSC 350 Project 31 Specificationdesign Write And Test A Program

Write and test a program that performs a sort using a binary search tree. The program should be able to sort lists of integers or lists of fractions in either ascending or descending order. The GUI should include radio buttons to select between integers and fractions, and to specify the sort order. When the "Perform Sort" button is pressed, all numbers from the original list should be added to the binary search tree, which is then traversed in order to generate a sorted list. The sorted list should be displayed in a text field. The program must include a main class that creates the GUI, a generic binary search tree class with insertion and inorder traversal methods, and a fraction class that implements Comparable and handles parsing and error checking. Error handling should manage non-numeric inputs and malformed fractions, displaying appropriate messages. The code must follow the specified style and design constraints, including private variables, recursion in insertion, and object-oriented principles.

Paper For Above instruction

Sorting algorithms are fundamental to computer science, facilitating the efficient organization of data for various applications. Among various data structures, binary search trees (BST) are a popular choice for sorting due to their efficient insertion, deletion, and traversal capabilities. The project described requires implementing a sorting program using BST, with input options for integers and fractions, along with ascending or descending order. The implementation involves designing a user-friendly GUI in Java, developing a generic BST class, creating a fraction class, and ensuring robust error handling.

The core idea of the program is to allow the user to input a list of numbers—either integers or fractions—and specify the sorting order. Upon pressing the "Perform Sort" button, each number is inserted into a binary search tree. The choice of the BST's order depends on the user's selection; for ascending order, the tree is built in the natural order defined by the Comparable interface, while for descending order, the comparison logic is inverted or a reverse comparator is used. Once inserted, an inorder traversal retrieves the data in sorted order. For fractions, a dedicated class handles parsing from string, validation, comparison, and string conversion, raising exceptions for invalid formats or non-numeric inputs.

Design considerations include following object-oriented principles such as encapsulation and code reuse. The GUI is crafted manually without GUI builders, adhering to Java Swing standards, with radio buttons and text areas for input and output. Error handling is crucial; non-numeric entries trigger NumberFormatException, while improperly formatted fractions invoke a custom MalformedFractionException, both caught to display user-friendly messages.

The BST class is templated to be generic, accommodating both Integer and Fraction objects. It includes recursive insertion and traversal methods. The Fraction class implements Comparable, defining compareTo based on the numerical value of fractions. It includes a constructor to parse fractions from string, a toString method, and exception handling for malformed strings or non-numeric inputs.

The test plan involves verifying sorting of integers and fractions in both ascending and descending orders, with special cases for duplicate entries and invalid inputs. Test cases are documented in a table, demonstrating expected and actual results, ensuring comprehensive test coverage.

Overall, the project emphasizes good coding practices, clear documentation, and adherence to style guides and design constraints, producing a robust, efficient, and user-friendly sorting application.

References

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