CMIS 102 Hands-On Lab Week 7 Overview

CMIS 102 Hands-On Lab Week 7 Overview This hands-on lab allows you to follow and experiment with the critical steps of developing a program including the program description, analysis, test plan, design, and implementation with C code

This assignment involves creating and understanding a C programming application that calculates the square or cube of a positive integer provided by the user. The program must include functions for calculating the square and cube of integers, utilize control structures such as loops and conditionals, and be capable of continuous operation until a negative integer is entered to terminate.

First, you will analyze the core functionality, outlining the process flow, variables, and functions involved. Then, you will design the program pseudocode and implement a working version of the code in C. To verify functionality, you should develop a test plan with sample input values and expected outputs to ensure correctness. Additionally, you are tasked with enhancing the program by adding a new function called “Shrink,” which takes an integer input and returns its value divided by 2 as a double type.

Furthermore, the assignment requires exploring the implications of removing critical parts of the code, such as the condition that continues the loop while the input is positive, and documenting the impact with test execution results. An extra challenge involves modifying the original code to include a unique, additional function of your choice, validating its performance with multiple test cases.

The final deliverable is a comprehensive, organized report with well-documented code, screen captures of program execution outcomes, and detailed explanations of each enhancement, including test tables with specific inputs and expected outputs for all new functions introduced. The report should reflect sound coding practices, clarity, minimal errors, and thorough understanding of procedural programming concepts discussed in the course.

Paper For Above instruction

The development of a user-interactive program in C that computes the square or cube of a positive integer demonstrates fundamental programming concepts such as function definition, control flow, and user input handling. The overarching goal is to create an efficient, reusable code structure that allows repetitive calculations until a termination condition—entering a negative number—is met. This program serves as an excellent example of implementing modular programming using functions, managing user choices through menu-driven options, and employing loops for repeated execution.

The core logic begins with declaring variables to store the user input, menu selection, and calculation results. These variables include IntValue, for the current number entered; MenuSelect, which determines whether to compute the square or cube; and Results, which stores the outcome of the respective function. The main control flow uses a while loop, continuing as long as the user inputs positive integers. Inside the loop, the program prompts the user for an integer, then if the number is positive, it offers a menu to select the desired calculation (square or cube). Based on the selection, the corresponding function is invoked, and the result is displayed. Once a negative integer is entered, the loop exits, ending the program.

The functions Square and Cube take an integer argument and return the computed value. The Square function returns value value, while the Cube function returns value value * value. These functions encapsulate the mathematical operations, promoting code reusability. The pseudocode reflects this structure, illustrating variable declarations, the main loop, user prompts, selection logic, and function calls.

The C implementation adheres to this design, with printed prompts and readings via scanf. The code includes prototypes for Square and Cube, and within the main function, it manages user inputs and choices. The results are printed with printf. The code is structured to handle invalid menu choices gracefully by displaying an error message without terminating the program unexpectedly.

To enhance the application, a new function called Shrink is introduced. This function takes an integer, divides it by 2, and returns a double value. Its purpose is to extend the functionality beyond basic arithmetic calculations, offering more flexible numerical manipulations. Proper testing with diverse input sets including positive, zero, and negative values helps verify its correctness. As per the test plan, scenarios are devised to validate that the function precisely halves positive integers and handles edge cases gracefully.

Removing the conditional check if (intValue > 0) within the loop would significantly alter the program's behavior. Without this constraint, the loop would continue to solicit input even after negative numbers are entered, potentially causing unintended execution or errors. Screen captures of execution before and after removal clarify that omitting this condition leads to an infinite loop or incorrect termination, emphasizing the importance of input validation for control flow stability.

Further exploration involves adding a unique function, such as Fibonacci, generating Fibonacci numbers up to a certain value or position. This extension requires designing a new function, integrating it into the menu structure if applicable, and validating its correctness through multiple test cases. It demonstrates flexibility in program design and deepens understanding of function implementation, recursion, or iterative algorithms. Testing should include small and large inputs, ensuring accurate outputs and demonstrating the usability of the extended application.

Overall, this project underscores critical concepts in procedural programming: modular function design, user interaction, loop control, input validation, and extensibility. The comprehensive report consolidates the program code, testing narratives, screen captures, and reflective explanations to illustrate proficient programming practice and critical thinking in software development.

References

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